Sunderland boss Regis Le Bris is wary of the threat of Saturday's visitors Watford and hopes the Hornets do not "wake up" at the Stadium of Light.
Watford boss Tom Cleverley has come under mounting pressure as his side have lost seven of their nine games in all competitions since 29 December, including the past three in a row.
The Hornets have slipped out of the top six and are 12th before Saturday's 12:30 GMT kick-off against a Black Cats side in fourth but seeking to go level on points with second-placed Burnley by winning their game in hand.