Chelsea defender Kurt Zouma has emerged as a target for Bundesliga side Schalke.
The 21-year-old is battling back to fitness after rupturing the anterior cruciate ligament in his right knee against Manchester United in February.
Blues coach Antonio Conte is short of centre-backs in his squad, but recognises the young French powerhouse needs games to rediscover his match sharpness.
Schalke want to take him on a season loan and Chelsea will consider the option over the coming days.