New West Ham United co-owner David Sullivan has branded Chelsea and Manchester City as "bad for football".

Sullivan says their big spending ways is hurting the game.

After buying the club, Sullivan and partner David Gold - both West Ham fans - revealed the club's debts were £110m.

"They're bad for football. Maybe the ultimate solution is a wage cap," ex-Birmingham owner Sullivan said.

"I've always been against it but I'm starting to swing towards it. It's the only way to keep clubs solvent."

Sullivan said the overall financial climate in football was not being helped by the riches of Roman Abramovich at Chelsea and Sheikh Mansour at Manchester City.

"There was a reality coming into the world until (Abramovich bought) Chelsea," he told the BBC's HARDtalk programme.

"After Chelsea there was some levelling off, then the Icelanders came to West Ham and it was madness what they were paying people relative to what they were - then Manchester City have done the same thing."