London (AFP) - Zlatan Ibrahimovic has set his sights on leading Manchester United to the Premier League title after boasting he took just three months to establish himself as one of the best players in England.

Despite critics claiming Ibrahimovic would struggle to adapt to the Premier League, the Swedish forward has already scored 18 goals since joining United on a free transfer from Paris Saint-Germain last year.

He has netted 13 times in the Premier League and the 35-year-old has only one goal fewer than Chelsea striker Diego Costa, who is the division's leading marksman.

But the former Barcelona, Juventus and Inter Milan star insists he does not care about winning the race to finish as top scorer because his impressive first half of the season has been the perfect response to his doubters.

And, having won the league title in Italy, Spain, France and the Netherlands, he is looking to add a Premier League medal to his collection.

"I'm chasing the head trophy, the Premier League. That is my aim," he told United's website on Thursday.

"The individual things come as part of the main objective because that is like a bonus for every individual player. If the collective does well, then the individuals will do well.

"I try to help the team and try to do what I'm best at, scoring goals, playing good and creating chances for my team-mates. As long as I can do that, I know I will help my team.

"The same thing with them, they help me the way they can for the team. I have no individual targets because that I did already, after three months in England. I conquered England - it took three months."

He is set to return after illness to face Liverpool in the league on Sunday.