Jose Mourinho will not settle for anything less than winning the Premier League title at Manchester United, says Phil Neville.
United ended last season 24 points behind Mourinho's former club Chelsea, who were crowned Premier League champions, finishing sixth in the top flight in the Portuguese's first campaign at Old Trafford.
Mourinho, who has three English titles to his name with Chelsea, will not stop until he has achieved the same success he had at Stamford Bridge, though, according to former United defender Neville.
"It's going to be a difficult season, as everyone else is spending money and improving," Neville told MUTV. "United are going to have to improve as well because they didn't finish in the top four last season.
"Even that is a big ask, but I think Jose will want to win the Premier League. That's the big one. He won't settle for anything less."
Although league success eluded Mourinho last season, Manchester United still managed to win the Europa League (achieving Champions League qualification in the process) and the EFL Cup.
United have brought in defender Victor Lindelof for £30m already this summer as they look to boost their title credentials for next season, and Neville believes United may face an arms race to get back to the top of the Premier League.
"Now we're looking to see who Jose signs because, if you look at the top six clubs, I think they will all strengthen," Neville added. "United have to strengthen and it'll be interesting to see which team strengthens the most.
"If you look at the drawn games at Old Trafford last season and convert maybe 90 per cent of those into wins, then United would have been challenging for the title. If they can do that this year, then I think the title will come back to Manchester."