Blackburn Rovers are keeping tabs on Olympiacos fullback Vassilios Torosidis.

French sources say Olympiacos rejected a £5 million offer from Rovers in January for the 23 year-old Greece international.

Olympiacos have since attempted to open new contract talks with Torosidis, but the defender has baulked at the demands as he wants to keep his options open.

Rovers, Celtic, Juventus and Bayern Munich are monitoring developments.