The Frenchman has endured a tough season after coming back from knee problems.
He has been in and out of the team, but has starred in the past two games.
Lampard told the club website after the game: "It was fantastic from Kurt and at Watford he played a really great game as well.
"Imposing, great defending, good on the ball and that is everything I want.
"Defenders won't always get credit for those moments, the goalscorers get those, but his was a tackle that saved us two points.
"I am really pleased with him."