Bolton boss Owen Coyle has admitted it will be tough to retain Gary Cahill this summer but believes the club will not be short-changed if they opt to sell the defender. Cahill, 25, has been linked with a summer move to several of the Premier League's top clubs including Liverpool, Manchester City and Arsenal, and the Wanderers manager has no doubt the England international is capable of succeeding at the highest level. However, now that Blackburn's England Under-21 star Phil Jones has joined Manchester United in a deal which could be worth £20million, Coyle is well aware of the potentially pricey value of his centre-back. "I believe he could play for any club - I'd put my reputation on it," the Scot said. "There's been a lot of interest - and you don't have to be a genius to work out some of the top clubs in this country have been interested - but nothing concrete yet." "It would take a lot of money. It is up to those clubs to put something firm to the chairman. He is not a player we want to lose, I have to stress that, but we have to accept if it is the right deal for the club and the player it has to be done and that then frees up cash for us to invest in the club. "I would love him to stay. He is a fantastic player for the club and I am not saying I want him to go, but if he does it will be the right business for the club." Cahill's departure from the Reebok Stadium would likely come at a fee in excess of £15 million, which Coyle could then use to bolster his squad. The Trotters finished 14th in the Premier League table last season, and will open the 2011-12 campaign away to newly-promoted QPR.