Question: Who was manager when the team that Albert Ferrer played for won Champion's League?

full_context: Document 1: Chelsea F.C.: Chelsea Football Club is an English professional football club in Fulham, London, that competes in the Premier League, the top division of English football. The club has won six top division titles, eight FA Cups, five League Cups, four FA Community Shields, two UEFA Europa Leagues, two UEFA Cup Winners' Cups, two Full Members' Cups, one UEFA Champions League, and one UEFA Super Cup.
Document 2: Paqui: He was part of Spain's gold medal-winning squad at the 1992 Summer Olympics in Barcelona, and played professionally for six clubs during 16 years, mainly Tenerife and Las Palmas.
Document 3: England national football team manager: Swedish coach Sven - Göran Eriksson became the first foreign manager of the team in January 2001 amid much acrimony; he helped the team to three successive quarter - finals in major championships. Italian manager Fabio Capello replaced Steve McClaren in December 2007, after England failed to qualify for Euro 2008. Capello's side endured a lacklustre performance during the 2010 World Cup, but the FA confirmed that he would remain in the role. However, Capello resigned in February 2012, following a disagreement with the FA over their removal of John Terry's captaincy. He was replaced, on a caretaker basis, by Stuart Pearce, before Roy Hodgson was named as Capello's permanent replacement in May 2012. Hodgson's contract finished on 27 June 2016 as England were knocked out of UEFA Euro 2016 by Iceland in the round of 16. Sam Allardyce was announced as his successor a month later, but subsequently left the role after just one competitive match. He was replaced on a caretaker basis by England under - 21 coach and former England international defender Gareth Southgate, whose position was made permanent after four matches.
Document 4: 1985–86 Chelsea F.C. season: It was the first season under the management of John Hollins, who had previously been a member of Chelsea's victories in the 1970 FA Cup Final and 1971 European Cup Winners' Cup Final. On 1 January 1986 Chelsea were second, two points behind leaders Manchester United and in March the club were still in second, four points behind Everton with two games in hand. The two games in hand were lost 4–0 at home to West Ham United and 6–0 away at Queens Park Rangers. After gaining just 9 points from a possible 33 in the last 11 games, Chelsea finished 6th for the second season in succession.
Document 5: Vicente Miera: He appeared in 139 La Liga games over the course of ten seasons and scored two goals, mainly at the service of Real Madrid. Later, he embarked on a managerial career which lasted more than 25 years, and included a brief spell with the Spain national team.
Document 6: List of Chelsea F.C. managers: Name Nat Tenure Honours Ted Drake England 1952 -- 1961 1955 First Division 1955 FA Charity Shield Tommy Docherty Scotland 1961 -- 1967 1965 Football League Cup Dave Sexton England 1967 -- 1974 1970 FA Cup 1971 European Cup Winners' Cup John Neal England 1981 -- 1985 1984 Second Division John Hollins England 1985 -- 1988 1986 Full Members Cup Bobby Campbell England 1988 -- 1991 1989 Second Division 1990 Full Members Cup Ruud Gullit Netherlands 1996 -- 1998 1997 FA Cup Gianluca Vialli Italy 1998 -- 2000 1998 Football League Cup 1998 UEFA Cup Winners' Cup 1998 UEFA Super Cup 2000 FA Cup 2000 FA Charity Shield José Mourinho Portugal 2004 -- 2007 2013 -- 2015 2005 Football League Cup 2005 Premier League 2005 FA Community Shield 2006 Premier League 2007 Football League Cup 2007 FA Cup 2015 Football League Cup 2015 Premier League Guus Hiddink Netherlands 2009 2015 -- 2016 2009 FA Cup Carlo Ancelotti Italy 2009 -- 2011 2009 FA Community Shield 2010 Premier League 2010 FA Cup Roberto Di Matteo Italy 2012 2012 FA Cup 2012 UEFA Champions League Rafael Benítez Spain 2012 -- 2013 2013 UEFA Europa League Antonio Conte Italy 2016 -- 2018 2017 Premier League 2018 FA Cup
Document 7: FC Barcelona: Like Maradona, Ronaldo only stayed a short time before he left for Internazionale. However, new heroes emerged, such as Luís Figo, Patrick Kluivert, Luis Enrique and Rivaldo, and the team won a Copa del Rey and La Liga double in 1998. In 1999, the club celebrated its centenari, winning the Primera División title, and Rivaldo became the fourth Barcelona player to be awarded European Footballer of the Year. Despite this domestic success, the failure to emulate Real Madrid in the Champions League led to van Gaal and Núñez resigning in 2000.
Document 8: Chelsea F.C.: In July 2003, Bates sold Chelsea to Russian billionaire Roman Abramovich for £140 million. Over £100 million was spent on new players, but Ranieri was unable to deliver any trophies, and was replaced by José Mourinho. Under Mourinho, Chelsea became the fifth English team to win back-to-back league championships since the Second World War (2004–05 and 2005–06), in addition to winning an FA Cup (2007) and two League Cups (2005 and 2007). After a poor start to the 2007–2008 season, Mourinho was replaced by Avram Grant, who led the club to their first UEFA Champions League final, which they lost on penalties to Manchester United.
Document 9: Derek Saunders: Saunders was a member of Chelsea's 1954-55 Championship-winning team. He was one of only two players to play in every game that season. Saunders' position meant that he rarely scored goals, but he scored a crucial one against West Bromwich Albion to put Chelsea 3-2 ahead after they had trailed 0-2; they eventually won 4-2. He stayed with Chelsea for a further four seasons, though they were unable to repeat their title success. He featured in the first Chelsea side to play in a European competition, the Inter-Cities Fairs Cup in 1958. A year earlier, he had played for the representative London XI side in the same competition. He made 223 appearances for Chelsea, and scored nine goals. Upon leaving the club in 1959, Saunders became the Head Groundsman at Vincent Square, the central London playing fields for Westminster School.
Document 10: La Liga: 62 teams have competed in La Liga since its inception. Nine teams have been crowned champions, with Real Madrid winning the title a record 33 times and Barcelona 25 times. Barcelona won the inaugural La Liga in 1929 with Athletic Bilbao claiming several titles in the league's early years. Barcelona and Real Madrid dominated the championship in the 1950s, winning four La Liga titles each throughout the decade. Real Madrid dominated La Liga from the 1960s through the 1980s, when Barcelona, Athletic Bilbao, and Real Sociedad won the league twice in those years. From the 1990s onward, Barcelona has dominated La Liga, winning 15 titles. Although Real Madrid has been prominent, winning 8 titles, La Liga has also seen other champions, including Atlético Madrid, Valencia, and Deportivo de La Coruña. In the 2010s, Atlético Madrid has become an increasingly stronger team, forming a trio alongside Real Madrid and Barcelona.
Document 11: FC Barcelona: In 1918 Espanyol started a counter-petition against autonomy, which at that time had become a pertinent issue. Later on, an Espanyol supporter group would join the Falangists in the Spanish Civil War, siding with the fascists. Despite these differences in ideology, the derbi has always been more relevant to Espanyol supporters than Barcelona ones due to the difference in objectives. In recent years the rivalry has become less political, as Espanyol translated its official name and anthem from Spanish to Catalan.
Document 12: Premier League Manager of the Season: Season Manager Nationality Club Ref 1993 -- 94 Ferguson, Alex Alex Ferguson Scotland Manchester United 1994 -- 95 Dalglish, Kenny Kenny Dalglish Scotland Blackburn Rovers 1995 -- 96 Ferguson, Alex Alex Ferguson (2) Scotland Manchester United 1996 -- 97 Ferguson, Alex Alex Ferguson (3) Scotland Manchester United 1997 -- 98 Wenger, Arsene Arsène Wenger France Arsenal 1998 -- 99 Ferguson, Alex Alex Ferguson (4) Scotland Manchester United 1999 -- 2000 Ferguson, Alex Alex Ferguson (5) Scotland Manchester United 2000 -- 01 Burley, George George Burley Scotland Ipswich Town 2001 -- 02 Wenger, Arsene Arsène Wenger (2) France Arsenal 2002 -- 03 Ferguson, Alex Alex Ferguson (6) Scotland Manchester United 2003 -- 04 Wenger, Arsene Arsène Wenger (3) France Arsenal 2004 -- 05 Mourinho, Jose José Mourinho Portugal Chelsea 2005 -- 06 Mourinho, Jose José Mourinho (2) Portugal Chelsea 2006 -- 07 Ferguson, Alex Alex Ferguson (7) Scotland Manchester United 2007 -- 08 Ferguson, Alex Alex Ferguson (8) Scotland Manchester United 2008 -- 09 Ferguson, Alex Alex Ferguson (9) Scotland Manchester United 2009 -- 10 Redknapp, Harry Harry Redknapp England Tottenham Hotspur 2010 -- 11 Ferguson, Alex Alex Ferguson (10) Scotland Manchester United 2011 -- 12 Pardew, Alan Alan Pardew England Newcastle United 2012 -- 13 Ferguson, Alex Alex Ferguson (11) Scotland Manchester United 2013 -- 14 Pulis, Tony Tony Pulis Wales Crystal Palace 2014 -- 15 Mourinho, Jose José Mourinho (3) Portugal Chelsea 2015 -- 16 Ranieri, Claudio Claudio Ranieri Italy Leicester City 2016 -- 17 Conte, Antonio Antonio Conte Italy Chelsea 2017 -- 18 Guardiola, Pep Pep Guardiola Spain Manchester City
Document 13: FC Barcelona: On 14 June 1925, in a spontaneous reaction against Primo de Rivera's dictatorship, the crowd in the stadium jeered the Royal March. As a reprisal, the ground was closed for six months and Gamper was forced to relinquish the presidency of the club. This coincided with the transition to professional football, and, in 1926, the directors of Barcelona publicly claimed, for the first time, to operate a professional football club. On 3 July 1927, the club held a second testimonial match for Paulino Alcántara, against the Spanish national team. To kick off the match, local journalist and pilot Josep Canudas dropped the ball onto the pitch from his airplane. In 1928, victory in the Spanish Cup was celebrated with a poem titled "Oda a Platko", which was written by a member of the Generation of '27, Rafael Alberti, inspired by the heroic performance of the Barcelona goalkeeper, Franz Platko. On 23 June 1929, Barcelona won the inaugural Spanish League. A year after winning the championship, on 30 July 1930, Gamper committed suicide after a period of depression brought on by personal and financial problems.
Document 14: Albert Ferrer: Having represented local Barcelona for almost a decade, he went on to appear for England's Chelsea until his retirement. During his spell in his country he was nicknamed "Chapi", and appeared in a total of 221 La Liga matches during nine seasons.
Document 15: List of FA Community Shield matches: Manchester United hold the record for the most victories, winning the competition 21 times since its inception. They also hold the distinction of having the most appearances (30) and most losses (9). Although the Shield has had its share of historical moments -- from Eric Cantona's first career hat - trick in 1992, to Manchester United's first loss of 1999 ending a streak of 33 consecutive games without a defeat -- it has been dismissed as a ceremonial friendly that is not on par with other domestic honours in terms of prestige. Winning the Shield has proven to be an unreliable indicator of success in the forthcoming season. Since the establishment of the Premier League in 1992, only seven clubs that won the Shield proceeded to become League champions in the same season, the last being Manchester United in 2010 -- 11. Indeed, Gianluca Vialli was sacked only weeks after guiding Chelsea to the victory in the 2000 match, following a lacklustre start to the season. The current holders are Arsenal, who defeated Chelsea in a penalty shootout after a 1 -- 1 draw in the 2017 edition.
ground_truth: Roberto Di Matteo
sub_queries: Albert Ferrer >> member of sports team Answer: Chelsea
who was manager when Chelsea won champions league Answer: Roberto Di Matteo