Question: What is the nickname of the talisman who was part of the year that AIK only conceded 28 goals?

Context paragraphs:
2003–04 SV Werder Bremen season: SV Werder Bremen won its first ever German double, clinching both Bundesliga and the DFB-Pokal.  Following a club record-breaking league season, Werder won the title six points clear of Bayern Munich, with Aílton hitting 28 goals, the most ever from a Werder Bremen player.  The cup victory was clinched following a 3–2 win against Alemannia Aachen, with defensive midfielder Tim Borowski the unexpected hero, hitting Alemannia with a brace.  The title successes were Thomas Schaaf's first in his managerial career.  However, Werder lost both Aílton and defensive senior talisman Mladen Krstajić to Schalke 04, since both refused to sign new contracts with the club.

Darryl Shannon: Darryl Jackson Shannon (born June 21, 1968) is a retired Canadian professional ice hockey player.  He was drafted 36th overall by the Toronto Maple Leafs in the 1986 NHL Entry Draft and as well as the Leafs, he played for the Winnipeg Jets, Buffalo Sabres, Atlanta Thrashers, Calgary Flames, and the Montreal Canadiens.  Despite a serious illness, he played a total of 544 regular season games in the National Hockey League, scoring 28 goals and 111 assists for 139 points and collecting 523 penalty minutes.  He also played 29 playoff games, all with the Buffalo Sabres, scoring 4 goals and 7 assists for 11 points, collecting 16 minutes.  He moved to Germany in 2001 to play in the Deutsche Eishockey Liga for the Krefeld Pinguine and the Eisbären Berlin.  He is the older brother of fellow former NHLer Darrin Shannon who played

Arthur Metcalf: Arthur Metcalf (8 April 1889 in Sunderland – 9 February 1936) was an English professional footballer who played as a forward.  Metcalf played for a number of amateur clubs in the north-east, before earning a professional contract with Newcastle United in 1909.  He could not break into the first team at St. James' Park, however, only making twelve first team appearances before joining Liverpool in 1912.  His time at Anfield was largely successful, he finished as the club's top scorer in his first season with 28 goals, and featured in the FA Cup final a year later.  Injury struck, however, and he missed much of the 1914-15 season.  He was prolific during wartime football, but was not offered a new contract at the end of the conflict, and went on to have a journeyman career, playing for five more clubs before retiring in 1926.  His brother, George, was also a professional footballer.

Kenny Beech: Kenneth Beech (born 18 March 1958) is an English former footballer.  A midfielder, he played for Port Vale between 1976 and 1981, picking up the club's Player of the Year award in 1980, also playing on loan at American club Cleveland Cobras in 1978.  In 1981, he was sold to Walsall, before he moved on to Peterborough United two years later.  He dropped into non-league football with Stafford Rangers in 1985, with whom he won the Conference League Cup, before he retired in 1988.  He played 314 league games in the Football League, scoring 28 goals.

Andy Wilson (English footballer): Andrew "Andy" Wilson (born 27 September 1940) is an English former professional footballer who scored 28 goals from 229 goals in the Football League.  A winger, he played for Sheffield United, Scunthorpe United, Doncaster Rovers, Chesterfield and Aldershot.

2004–05 Chelsea F.C. season: The 2004–05 season was Chelsea F.C.'s 91st competitive season, 13th consecutive season in the Premier League and 99th year as a club.  Managed by José Mourinho during his first season at the club, Chelsea won the Premier League title (their first league title in 50 years) and the League Cup.  The season was historic for the vast number of records set during the season.  The list of achievements include; most away wins in a season (15), most clean sheets kept in a season (25), fewest goals conceded away in a season (9), most wins in a season (29), most consecutive away wins (9), fewest goals conceded in a season (15) and most points in a season (95).

Ian Rush: Ian James Rush, {'1': ", '2': ", '3': ", '4': "} (born 20 October 1961) is a retired Welsh professional footballer who played as a forward.  At club level Rush played for Liverpool F.C. from 1980–1987 and 1988–1996.  He is the club's all-time leading goalscorer, having scored a total of 346 goals in all competitions at the club, including a record 25 goals versus Merseyside derby rival Everton F.C..  At international level, Rush made 73 appearances for the Wales national football team and remains the record goalscorer for his country with 28 goals between 1980 and 1996.

Nils-Eric Johansson: Nils-Eric "Nisse" Johansson (born 13 January 1980) is a Swedish professional football player who currently plays as left-back for AIK.

2007 AIK Fotboll season: AIK had a disappointing season, where the team did not win a single match in the wake of the sale of Brazilian star Wílton Figueiredo, dropping out of the title chase, missing European qualification in the process.  Argentine recruits Iván Obolo and Lucas Valdemarín impressed upon their arrivals, forming an impressive unit with Figueiredo, which was curtailed when Al-Rayyan bought Figueiredo in September.  The defense was arguably AIK's greatest asset, conceding just 28 goals, led by keeper Daniel Örlund and new talisman Nils-Eric Johansson.

1998 Allsvenskan: Allsvenskan 1998, part of the 1998 Swedish football season, was the 74th Allsvenskan season played.  AIK won the league ahead of runners-up Helsingborgs IF, while BK Häcken and Östers IF were relegated.  AIK won the title despite having the fewest goals (25) scored in the league.

Supporting paragraphs: 2007 AIK Fotboll season Nils-Eric Johansson
Answer: Nisse