JAVIER HERNANDEZ insists he has no problem with his role as Manchester United's new supersub.

The Mexican striker has already netted 29 goals in just 18 months at the club — 10 of which have come from the bench.

That tally means only United hero Ole Gunnar Solskjaer has scored more as a substitute.

The Norwegian scored 28 from 150 sub appearances but Hernandez's 10 goals have come from only 30 games.

And while many players would voice their disappointment at only playing a bit-part role for their side, Chicharito is more than happy to come on as an impact player.

The 23-year-old said: "I just want to help my team. I don't care if I'm on the bench.

"Last year I was on the bench at the start and then I was in the team towards the end of the season. The gaffer has the answers.

"Every player in every team wants to play as many minutes as possible, but I don't care if I start or I'm a substitute.

"I just want to enjoy it. I am living a dream to play for Manchester United."

Red Devils boss Alex Ferguson put Solskjaer's success down to the intense way he watched and studied a game from the bench.

Hernandez though cannot put his finger on why he has been so effective as a sub and admits it could all just be a bit of luck.

He added: "I don't know what makes me effective as a substitute. I don't have the answer.

"In football you can't always come up with a reason, because of this or that.

"If I play one minute, 10 minutes or 90 minutes I try to play the same. My mind is always to do my best and help my team.

"There are some times in the game when we need to score and perhaps I have had a little bit of luck."

Manchester United boss Sir Alex Ferguson has revealed that influential Reds veteran Rio Ferdinand could be key to Paul Pogba staying at Old Trafford.

The young French midfielder has been stalling over a new United deal with rumours linking him with a move abroad.

But United boss Ferguson said: "Rio has become an important figure at the club. He is good with the players. He is good with the young players.

“At the moment, he is working hard on the boy Pogba and talking to him. The young boy is unsure. But Rio is well regarded.”

And Ferguson has paid tribute to 34-year-old Ferdinand for altering his own game.

“The thing that has been hard for Rio is that having had agility, speed and athleticism when you get to 33 you have lost a bit, maybe 10 or 15 per cent,” he said.

“So he has to change his game. He used to gamble, Rio. When a guy was slipping away from him he could go into overdrive and catch them but he can’t now.

“I spoke to him about it and said you are not the player you were five years ago and you cannot expect to be and you have had the back injured and you have to take care of that.

“He does the yoga now which is good. He has to adjust his game. I said your pace is not always going to get you out now so you have to read the game better now and he is doing great. He is doing better than he has ever done.

“It is all a matter of coping with an ageing player. We have done it with Ryan Giggs. He does yoga. Scholesy is back and is lovely and fresh. If you look after yourself you can get the rewards like that.”