The full-back has described his new team-mate as a "vocal striker" that adds a new unique dimension to Thomas Tuchel's forward line
Romelu Lukaku "bullies everyone he comes up against", according to Reece James, who hailed the "powerful" Chelsea frontman after his stunning debut against Arsenal.
Lukaku made his first appearance for Chelsea since rejoining the club from Inter in a £98 million ($138m) deal at Emirates Stadium on Sunday, and marked the occasion by scoring the opening goal in a 2-0 victory.
The 28-year-old was also involved in the build-up to the Blues' second, scored by James, who was hugely impressed by his new team-mate's contribution in the final third of the pitch.