Frank Lampard's celebrated return to Chelsea made a losing start at Wolves on Saturday.
Chelsea's away support gave the caretaker manager a rapturous welcome at Molineux, but the players couldn't match the fans' passion on the day.
Wolves were on the front-foot throughout and deserved victory which came via a goal from Matheus Nunes, the Portugal midfielder's first goal for the club since joining from Sporting Lisbon last August.
Nunes beat Chelsea goalkeeper Kepa Arrizabalaga with a strong drive from the tightest of angles after an attempted headed clearance by Kalidou Koulibaly.
Joao Felix forced a save from Jose Sa, but Chelsea were flat as defeat saw them remain 11th after just two wins in 11 league games.
