Juan Sebastian Veron has warned Carlos Tevez that life at Manchester United is not always easy.
Tevez has been the subject of a summer-long transfer saga between his current club, West Ham, and the Premier League champions.
United are hopeful they are close to completing the deal, but former Red Devils midfielder Veron has told Tevez he is not guaranteed to succeed at Old Trafford.
Veron joined United in 2001 for a then British transfer record fee of £28.1million, but he failed to live up to expectations and was shipped out to Chelsea two years later.
Speaking from that experience, Veron admits he has explained to Tevez about the pressures he could face at United.
"To triumph at the club is not easy, even if you are a superstar," Veron told The Sun.
"Some players leave because of the enormous and constant pressure. Carlos will find that United is not like West Ham in any aspect.
"The change will be enormous and if things do not go well he could suffer a mortal fall in fortune.
"If a player has good fortune from the very first day everyone is positive. But, if problems appear it is not so easy to triumph.
"The only possible goal there is success. Second place is failure and this burns deep into every player and can affect you."