Chelsea boss Frank Lampard has been warned against selling Chelsea’s best defender Antonio Rudiger.

The German international was absent from the Blues squad for a third successive game as Chelsea crashed out of the Carabao Cup on penalties against Spurs on Tuesday night.

The 27 year old has become fifth-choice centre-back at Chelsea following the arrival of Thiago Silva from Paris Saint-Germain.

West Ham, Tottenham Hotspur, Paris Saint-Germain and Barcelona are all reportedly interested in signing Rudiger.

Former Chelsea striker Jimmy Floyd Hasselbaink has warned Rudiger is Chelsea’s best centre-back.

“They’ve all made mistakes but for me their best centre-back is Rudiger,” Hasselbaink told Sky Sports.

“At the end of last season he didn’t have his best spell, he was out of the team but if you look at a whole season he has done the best.

“He normally smells danger and he clears it up. For Rudiger not to have played yet something is going on.”