Manchester United legend, Roy Keane, has revealed that Cristiano Ronaldo's return to the club won't guarantee them the big trophies like the Premier League and Champions League.
WuzupNigeria reported that United reached an agreement with Juventus to bring back their legend after 12 years of departing the club.
Keane who was once Ronaldo's teammate believes that the Portuguese is a born winner who would change the atmosphere around the club on and off the pitch.
The Irishman however noted that United's midfield problem might be the major challenge when it comes to the big trophies.
Discussing the 36-year-old's comeback, Keane told Sky Sports: "I think it's great news for United, the fans, the Premier League.
"There's no doubt in my mind he's still a world-class player... He's a clever guy. He's coming back to United to win stuff.
"I don't think he'll be the difference in terms of winning the big trophies - Man Utd still have the same problems with or without Ronaldo and that's midfield - but an FA Cup or a League Cup is more than possible.
"He'll want more than that. He'll bring a winning mentality to the dressing room... He's adapted his game and he's a winner.
"I see a lot of pluses and he's going to make them better, of course, but in terms of the bigger picture, I still don't think Man Utd are ready to win the title.
"I don't think they're going to close the gap all of a sudden."