Manchester City boss Mark Hughes admits fit-again Valeri Bojinov is an enigma.

"At the moment Valeri is still an unknown quantity for everybody," said Hughes.

"He was an outstanding teenager and people paid a lot of money for him because they recognised the ability he had.

"Unfortunately his career has hit the buffers because of injuries.

"We are delighted that he is back but we can't place too much pressure on him. We don't know if he can play his natural game in the Premier League because he has never completed a game here."