Jimmy-Floyd Hasselbaink has called on former Chelsea team-mate Frank Lampard to kick off his January business by signing Moussa Dembele.
Lampard is free to spend after the Blues were banned from making signings in the summer and has identified Dembele as a player who would improve his forward options.
Chelsea did have a bid rejected for him by Lyon last week but Sportsmail understands they are still keen on the 23-year-old despite his current side saying they have no intention of selling him.
Chelsea are interested in signing Lyon striker Moussa Dembele in the January transfer window
Former striker Jimmy Floyd Hasselbaink believes his old team should snap Dembele up
He has hit 10 goals in Ligue 1 already this season and Hasselbaink, who faced a young Dembele as QPR manager, believes his 'killer' instinct in front of goal makes him the right man for Lampard's side.
He told Sportsmail: 'Chelsea need to make new signings because you have to keep the rhythm going and just to get some kind of new blood coming through the door.
'It is always good when you make a signing. It gives everybody new energy, you know? Obviously Tammy Abraham is doing really well but he is the only one really who is doing really well. (Michy) Batshuayi is not making a difference. Giroud, I think, he does not really fit in with their plans.
'They need to get a striker in. Moussa Dembele would be a magnificent signing for Chelsea.
Hasselbaink praised Tammy Abraham's performances but said he needed more competition
'I know Moussa quite well. I faced him when I was QPR manager, he played ever so well and killed my defence. He has developed himself extremely well. He went to Celtic and played at a big club where the atmosphere and the pressure is there of winning. You have to win every match.
'Having already tasted that and gone through that pressure, and if Chelsea buy him, he is familiar with that. When you are at Chelsea, you have to be able to handle the pressure of winning things and he has shown at Celtic he can do that.
'More importantly, he is a killer. He is a goalscorer. He lives for goals. He scores goals in different ways, with his head, with his feet, left and right. He is quick, he is strong, he can still improve, he is still very young.