Chelsea could make a move for Fulham centre-back, Tosin Adarabioyo in the summer.
Adarabioyo will become a free agent at the end of next month after failing to sign a contract extension.
According to transfer expert, Fabrizio Romano, Chelsea has asked for the conditions of the deal to sign the defender.
The Blues will need to find a replacement for Brazilian defender, Thiago Silva in the summer.
Adarabioyo has played over 100 games in the Premier League.
The Nigerian-born player joined Fulham from Manchester City three years ago.