Chelsea will be without injured trio Ben Chilwell, Mateo Kovacic and N’Golo Kante for tomorrow's game with Watford, while late fitness tests on Jorginho, Reece James and Timo Werner are required.

Blues' boss Thomas Tuchel has said the three players are in doubt after their participation in a 1-1 draw with Manchester United at the weekend.

“For tomorrow, we have some players in doubt, maybe we need a bit more time, a bit more examination to re-evaluate the status,” he said.

“It’s Reece James, Jorginho and Timo Werner. They all trained today with us and there will be some last-minute decisions about this.”

Record signing Romelu Lukaku returned from an ankle issue as a late substitute against former club United and is fit to feature at Vicarage Road.

“With Romelu, it’s pretty easy,” said Tuchel.

“He came on and he continued to train, there’s no reaction from his injured ankle, so he stayed in training and he’s ready to progress in minutes.”