Wolves moved level on points with Chelsea after an entertaining 2-1 win at Molineux on Christmas Eve.
Mario Lemina’s header early in the second half put Gary O’Neil’s team in front and substitute Matt Doherty doubled the advantage in stoppage time.
Christopher Nkunku scored his first Chelsea goal soon after coming on for injured Lesley Ugochukwu but it was not enough for Mauricio Pochettino’s side.
Chelsea had chances. Raheem Sterling missed the best chance of the first half when one-on-one against Jose Sa, which he opted for a shot instead of a pass.
They have now lost 19 Premier League games in 2023. No team has lost more.
They remain 10th in the table while Wolves move up to 11th.