It is Mark Hughes.
Mark Hughes played for Man United, Chelsea and Barcelona. Bolo Zenden played for Chelsea, Barcelona and Liverpool
The five players who have played for both Manchester United and Barcalona are: Mark Hughes, Jordi Cryuff, Laurent Blanc, Gerard Pique, Henrik Larsson.
Mark Hughes (Manchester United, Chelsea and Barcelona) Emmanuel Petit (Arsenal, Chelsea, Barcelona)
Gerard Pique, Henrik Larsson, Jordi Cruyff and Mark Hughes
Mark Hughes played for Chelsea, Man Utd and Barcelona. Anyone for the other two?
Dennis Law and Carlos Tevez are players that formerly played for Manchester United and moved to Manchester City
Barcelona are far better then Manchester United.
Barcelona won Manchester united 10 times and Manchester united won Barcelona 11