As for me i believe he did not really had a superb performance at chelsea FC though i see him as a great footballer...let me also make an input by sharing some little info about bakayoko...

Tiémoué Bakayoko (born 17 August 1994) is a French professional footballer who plays for Premier League club Chelsea. He plays as a defensive midfielder, but can adapt to other positions such as a box-to-box midfielder due to his ability to break up play. He is considered to have all-round ability, as well as possessing physical power and athleticism, with France manager Didier Deschamps describing him as "a complete midfielder."

After suffering a fractured leg as a young player, Bakayoko joined the academy at Rennes at the age of 13. At 14, he was turned down by the Clairfontaine academy. His senior career began at Rennes where he made 24 appearances before moving to Monaco in 2014 for 8 million EUR.[4] In his first two seasons at the club, Bakayoko made 31 Ligue 1 appearances, but was a regular starter in the 2016–17 season, contributing to Monaco's Ligue 1 title win as well as being named in the 2016–17 UEFA Champions League squad of the season. In 2017, he joined Chelsea for £40 million.

Bakayoko made his first senior international appearance for the France national team in March 2017...

Source : https://en.m.wikipedia.org/wiki/Ti%C3%A9mou%C3%A9_Bakayoko