Chelsea have reportedly stepped up their interest in re-signing left-back Ryan Bertrand from Southampton, according to the London Evening Standard.

The England international was sold to the Saints for a fee of around £10m in 2015 and has established himself as one of the greatest full-backs in the top flight at St Mary’s.

The report suggests that Chelsea manager Antonio Conte is keen to add further depth at wing-back and sees the 27-year-old as an ideal option, and will launch up to £25m to land his signature, though the player still has four years left on his contract.

Bertrand has scored one goal and provided four assists in the Premier League this season.