Arsenal players Andrey Arshavin (2nd R), Cesc Fabregas (C), Robin Van Persie (L), William Gallas (R) and Theo Walcott (sitting) take part in an excercise during a team training session in Colney just north of London May 4, 2009. Arsenal will face Manchester United in the UEFA Champions League semi-final second leg tomorrow. REUTERS/Andrew Winning (BRITAIN SPORT SOCCER)