Skysports.com understands Blackburn are ready to rival Birmingham for Crystal Palace defender Nathaniel Clyne.
Birmingham have been long-term suitors of Clyne and have seen several bids rejected for the highly-rated full-back.
Blues boss Alex McLeish is expected to make a new move for the 19-year-old this summer, but he could face serious competition from Blackburn.
Rovers boss Steve Kean has been keeping tabs on Clyne's situation at Selhurst Park as they look at replacements for the ageing Michel Salgado.
Palace are facing a major fight to keep hold of Clyne, with the youngster yet to agree a new deal at the club.
A number of other clubs are also thought to be tracking the England youth international, with the likes of Liverpool, Aston Villa, Fulham, Sunderland and Championship hopefuls Queens Park Rangers all believed to be admirers.