Wolverhampton Wanderers will reportedly not entertain bids of less than £15m for star striker Steven Fletcher.

It is understood that Sunderland boss Martin O'Neill was preparing a £10m bid for the Scottish international. However, Wolves will not sell for anything less than their valuation, according to the Daily Mail.

Wolves have kept the bulk of their squad together following relegation from the Premier League last season, but Fletcher is expected to move back to England's top division this summer.

He scored 12 goals for Wolves last season.