Southampton are reportedly one of the clubs tracking Cardiff City defender Steven Caulker ahead of a potential summer swoop.

The 22-year-old is said to have attracted a number of Premier League clubs, including Liverpool.

According to the Daily Mail, Southampton have become interested in Caulker after it emerged that he has a release clause in his contract stating that he can leave Cardiff if they get relegated.

The Welsh outfit dropped into the Championship last weekend following a 3-0 defeat to Newcastle United.