N'Golo Kante is a doubt for the second leg of Chelsea's Europa League semi-final with Eintracht Frankfurt after sustaining an injury against Watford on Saturday.

A muscular issue forced the France international off after just 10 minutes of the Premier League meeting at Stamford Bridge, with Ruben Loftus-Cheek taking his place.

Maurizio Sarri may have to plan for the visit of Eintracht on Thursday without Kante, who completed the full 90 minutes in the 1-1 first-leg draw.

Kante suffered an injury to his ribs against Burnley on April 22 but was able to play a full part in Chelsea's next two games.

We're forced into an early change. Loftus-Cheek replaces the injured Kante.

0-0 [10'] #CHEWAT pic.twitter.com/1dNFO6iagt

— Chelsea FC (@ChelseaFC) May 5, 2019