Former Manchester United trainee Robbie Savage believes the Premier League champions have blown any chance of winning the title.
Savage, writing in his official blog for the Daily Mirror, has lamented Manchester United's summer transfer business, which saw the Red Devils miss out on the likes of Cesc Fabregas and Thiago Alcantara.
United managed to bring in Belgium powerhouse Marouane Fellaini during the final hours of the transfer window but Savage is of the opinion that David Moyes' side will not be able to compete with Manchester City and Chelsea.
"Manchester City lost last season's title before the campaign even started because they dithered in the summer transfer window and missed out on signing Robin van Persie," said Savage.
"Twelve months on, I am concerned that Manchester United will live to regret their deadline-day scramble - because I think they can already kiss goodbye to being No.1 in the Premier League.
"Let’s be fair to David Moyes: Nobody knows Marouane Fellaini better than the United manager, and if Moyes thinks he will be a hit at Old Trafford, time will probably prove him right."
Savage questioned United's decision to wait until the last day to sign Fellaini for £27.5million when he was available for £23million until the end of July.
He added: "But I can’t understand why United paid £27m for a player they could have signed for £4m less before the end of July under the terms of Fellaini’s contract at Everton.
"And for all his aerial power, and the steel he will bring to their midfield, I’m not sure Fellaini is a player in the same mould as United’s greatest signings.
"To me, he is no Cantona, Rio or Ronaldo."
Savage concluded his column by revealing he thinks Manchester United will finish below Premier League rivals Manchester City and Chelsea in this season's title race.