The French midfielder was substituted after 10 minutes in opposition to the Hornets and was changed by Ruben Loftus-Cheek, who helped inspire the 3-0 victory with the opening goal as the Blues moved into third place.
However Kante may now miss the essential second leg of the Europa League semi-final in opposition to Eintracht Frankfurt on Thursday, in addition to the ultimate Premier League match of the season at Leicester.
Maurizio Sarri concedes he ought to have rested Kante and was pessimistic when requested concerning the prospect of the participant’s availability subsequent week.
“The issue is along with his hamstring, however I believe I made a mistake. Most likely at present he needed to relaxation,” Sarri admitted.
“Generally its tough to place him on the bench, a participant so essential like Hazard and Kante however you must do it.
“It is rather tough to get well him for the subsequent two matches, we wish to play the ultimate so he’s fortunate, we’ve got to get well him for the ultimate.”
Sarri additionally assessed Chelsea’s prospects of ending inside the highest 4 and successful the Europa League.
He stated: “We wish to be on the finish of the Premier League within the high 4 as a result of we would like the subsequent Champions league and we see the Europa League differently.
Kante sits on the pitch after selecting up an damage (Getty Pictures)
“We wish to win it as a result of we expect that we need to win a trophy this season, we’ve got two targets.”