Tiemoue Bakayoko needs to offer more to Chelsea as a £40 million investment, says club legend Frank Lampard.
The Blues spent big bringing in the France international midfielder from Monaco over the summer.
His arrival helped to nudge Nemanja Matic through the exits, with Antonio Conte placing greater trust in a fresh face than a proven Premier League title winner.
That decision has been queried on a regular basis, with Lampard the latest to admit that the Bakayoko experiment is yet to deliver the required results.
The Blues icon wrote in a column for the Evening Standard: “Tiemoue Bakayoko will need to raise his game at Chelsea to keep Danny Drinkwater from taking his place on a more regular basis.
“Both players joined in the summer and as yet, Bakayoko has not made enough of an impact in games.
“When you sign for Chelsea, you have to understand that you’re never the only player for a position. There is always someone else knocking on the door.
“The pressure should be coming from within. Chelsea paid Monaco £40m for him - and that brings expectation. He has to live up to that on the pitch.
“Bakayoko has to work hard in training and also when he plays. He has quality, we saw that in the Champions League last season. He was fantastic in Monaco’s run to the semi-finals and that’s what everyone is waiting for at Chelsea.”
Lampard concedes that part of the problem for the 23-year-old is that he is yet to nail down a set position, with it difficult to tell whether he is a tough-tackling holding midfielder or a ball-playing creative type.
“At the moment I am looking at Bakayoko and I’m not sure what kind of midfield player he is,” added the former England international.
“I initially thought he could be compared to Yaya Toure, however, I don’t see that so much now.
“The way Chelsea play means he has to be disciplined in midfield, as Conte wants the wing-backs high up the pitch.
“Then the attacking players are given a bit of freedom, so he is one of two defensive midfielders given real responsibility to win tackles, keep things tight and move the ball quickly. N’Golo Kante does it out of instinct, but Bakayoko is finding it harder.”