Question: The knockout stage of the 2002–03 UEFA Champions League ran from 8 April 2003 until the final on 28 May 2003, at the Old Trafford, a football stadium in Old Trafford, Greater Manchester, in which UK country?

Context paragraphs:
Manchester United F.C.: Manchester United Football Club is a professional football club based in Old Trafford, Greater Manchester, England, that competes in the Premier League, the top flight of English football.  Nicknamed "the Red Devils", the club was founded as Newton Heath LYR Football Club in 1878, changed its name to Manchester United in 1902 and moved to its current stadium, Old Trafford, in 1910.

Old Trafford tram stop: Old Trafford is a tram stop on the Metrolink light rail system in Old Trafford, Greater Manchester, England.  Before 1991, it was a railway station called Warwick Road; it reopened as a tram stop on 15 June 1992 with its current name.  The stop is regularly used by crowds going to Old Trafford Football Ground and Old Trafford Cricket Ground which are both nearby.

2002–03 UEFA Champions League knockout stage: The knockout stage of the 2002–03 UEFA Champions League ran from 8 April 2003 until the final at the Old Trafford in Manchester, England on 28 May 2003.  The knockout stage involved the eight teams who finished in the top two in each of their groups in the second group stage.

2002–03 UEFA Champions League: The 2002–03 UEFA Champions League was the 11th season of UEFA's premier European club football tournament, the UEFA Champions League, since its rebranding in 1992, and the 48th European Cup tournament overall.  The competition was won by Milan, who beat Juventus on penalties in the European Cup's first ever all-Italian final, to win their sixth European title, and its first in nine years.  Manchester United's Ruud van Nistelrooy was again the top scorer, scoring 12 goals over the two group stages and knockout stage, in addition to two goals he had scored in the qualifying phase, although his side bowed out in the quarter-finals and missed out on the chance of playing in a final at their own stadium.

2003 UEFA Champions League Final: The 2003 UEFA Champions League Final was a football match that took place at Old Trafford in Manchester, England on 28 May 2003 to decide the winner of the 2002–03 UEFA Champions League.  The match was contested by two Italian teams: Juventus and Milan.  The match made history as it was the first time two clubs from Italy had faced each other in the final.  It was also the second intra-national final of the competition, following the all-Spanish 2000 UEFA Champions League Final three years earlier.  Milan won the match via a penalty shoot-out after the game had finished 0–0 after extra time.  It gave Milan their sixth success in the European Cup.

Sir Matt Busby Way: Sir Matt Busby Way is a road in Old Trafford, Greater Manchester, England.  It is the location of Manchester United's Old Trafford football ground.  Formerly known as Warwick Road North, it was renamed in honour of the legendary Manchester United manager, Sir Matt Busby, in 1993.  Busby died less than a year later on 20 January 1994, aged 84.  A bronze statue of Sir Matt Busby, erected in 1996, stands on the exterior of the East Stand of the Old Trafford stadium, overlooking Sir Matt Busby Way.

Old Trafford Cricket Ground: Old Trafford, known for sponsorship reasons as Emirates Old Trafford, is a cricket ground in Old Trafford, Greater Manchester, England.  It opened in 1857 as the home of Manchester Cricket Club and has been the home of Lancashire County Cricket Club since 1864.

Sport in Manchester: Manchester City and Manchester United are popular Premier League football clubs in Manchester, United's ground is in Old Trafford, and fixtures between the clubs are referred to as the Manchester Derby.  In 2012, City finished first and United second in the Premier League.  Manchester has hosted every major domestic, continental and international football competition, including the World Cup in 1966, the European Championship in 1996, Olympic Football in 2012, the 2003 UEFA Champions League Final, the 2008 UEFA Cup Final, 1893, 1911, 1915 and 1970 FA Cup Finals and 1977, 1978 and 1984 Football League Cup Final.

Old Trafford: Old Trafford is a football stadium in Old Trafford, Greater Manchester, England, and the home of Manchester United.  With a capacity of 75,643, it is the largest club football stadium in the United Kingdom, the second-largest football stadium, and the eleventh-largest in Europe.  It is about 0.5 mi from Old Trafford Cricket Ground and the adjacent tram stop.

1996–97 UEFA Champions League knockout stage: The knockout stage of the 1996–97 UEFA Champions League began on 5 March 1997 and ended with the final at the Olympiastadion in Munich on 28 May 1997.  The top two teams from each of the four groups in the group stage competed in the knockout stage.  The draw for the quarter-finals was performed before the start of the group stage, with the winners of each group drawn against the runners-up from another; group A was paired with group B, and group C with group D. For the semi-finals, the winners of each tie between teams from groups A and B played against the winners of the corresponding tie between teams from groups C and D.

Supporting paragraphs: 2002–03 UEFA Champions League knockout stage Old Trafford
Answer: England