The Brazilian forward has a "burning desire" to join a club that plays in big games all the time.
Nistelrooy's form has without question been the deciding factor, said the Man U manager.
They were held 2-2 by Bolton Wanderers in the English Premiership.
Arsenal have the chance to return to the top when they visit Bolton Wanderers on Saturday.
Pogba also said he is no longer bothered by criticism from soccer pundits because he has grown used to it.
The Manchester United striker will undergo a scan on Friday as concern over his calf injury deepens.
Man U boss Alex Ferguson and Newcastle captain Alan Shearer criticised match referee Paul Durkin after a controversial 0-0 draw.
They beat Olympique Lyon 2-1 to give manager Alex Ferguson a "fantastic night" in his 1,000th game.
After over 500 appearances, 100 goals and countless mesmerising dribbles, Ryan Giggs, Manchester United's prince of wingers, has suddenly become a target for the club's boo-boys.
The Manchester United manager admits he does not understand why his team have lost two games in a row despite returning to full strength.
Alex Ferguson fears Man U will struggle to break down Middlesbrough because of the work Steve McClaren has put in.
Keane will test out his hamstring after missing the mid-week Champions League win at Panathinaikos with a strain.
Manchester United manager Louis Van Gaal needs to be given more time so that the club can reap the rewards of allowing him to develop his own ideas, former United goalkeeper Peter Schmeichel said on Tuesday.
Roy Keane will defy the ageing process to reproduce his most fearsome form for Man United, said the manager.
They beat Charlton Athletic 2-0 in the premier league.
Manchester United were celebrating their eighth premier league title in 11 seasons on Sunday after Arsenal lost 3-2 at home to Leeds.
manager Alex Ferguson says that his team will need to produce their best-ever performance if they are to overturn a 3-1 first-leg deficit and beat Real Madrid.
They play Liverpool, Newcastle United and Arsenal in the premier league and Real Madrid in the Champions League between this Saturday and April 16.
The English champions have rarely played as poorly in a Champions League match as they did in the 2-1 defeat by Porto.
The Manchester United defender was hurt in a challenge with Leeds striker Alan Smith at Old Trafford on Saturday.
The Manchester United midfielders have knee injuries and will miss Champions League matches against Basel and Deportivo Coruna.