Romelu Lukaku needs more support from his team-mates at Chelsea, according to former France international David Trezeguet.

Lukaku made the move back to Stamford Bridge in August for a club-record £97.5 million fee from Inter, having scored 24 goals in 36 Serie A games during the Nerazzurri's title-winning 2020-21 campaign.

The Belgium forward has scored four times in eight games across all competitions for the Blues, including the winner against Zenit in their Champions League opener.

His header against the Russian Premier League outfit made him just the second player to score for two English clubs on debut in the competition but Lukaku fired a blank in the following 1-0 loss to Juventus on Wednesday.

Former Bianconeri star Trezeguet believes Lukaku needs more help from his Chelsea colleagues if Thomas Tuchel's side are to get the best out of the 28-year-old.

"Lukaku has proved to be competitive, but the world changes without [Antonio] Conte," Trezeguet told Italian outlet La Gazzetta dello Sport.

"Chelsea’s playing style is not as direct. I think he is a strong number nine, but he needs support from the team."

Federico Chiesa proved the thorn in Chelsea's side in their Group H clash, scoring the earliest second-half goal in the competition as he turned past Edouard Mendy just 10 seconds after the restart.

Operating up top for Massimiliano Allegri's team, Chiesa caused chaos and Trezeguet was impressed with the alternate option the Italy forward can provide Juventus.

"[He is] not a classic centre forward, that’s for sure," he continued.

"He loves spaces, he likes to start wide, he will never be a player like [Victor] Osimhen. For me, he is a winger or a support striker.

"Federico is having fun, even when he makes mistakes, he seems to have fun.

"He must learn how to manage himself during the game, move on the pitch and understand what his team-mates do. He'll get there."