Chelsea are chasing Olympique Lyon fullback Aly Cissokho. The Sunday Mirror says Chelsea manager Andre Villas-Boas has been asked by owner Roman Abramovich to oversee a major overhaul of the Stamford Bridge playing resources.

Villas-Boas is ­reviewing his club's ­defensive manpower.

He has set his sights on Cissokho, Lyon's 24-year-old left-back, who was capped for France last year.