Lyon are said to be in formal negotiations with Chelsea over the signing of Axel Disasi. The defender has been a target for some time, and talks are said to be intensifying as the window progresses. The player remains under contract, but movement looks increasingly likely the longer talks go on. Lyon remain optimistic, but the deal is not without hurdles. Fiorentina, Aston Villa and Monaco continue to monitor developments and could yet re-enter the race if negotiations stall or valuation gaps remain unresolved. With only 15 goals conceded in 14 (1.07 per game), Lyon have been one of the stronger defences in the Ligue 1 this season.. Axel Disasi would be asked to keep that standard and provide dependable cover when needed. Chelsea continue to be linked with Ayyoub Bouaddi, Harvey Barnes and Myles Lewis-Skelly while Lyon are also rumoured to be tracking Jefferson Savarino. Need more Lyon transfer rumours? Stay tuned to PlayerSwitch for live transfer news and rumours from across the world of football.