Frank Lampard’s first game after his return to Chelsea saw an upset as his side fell behind Wolves 1-0 at the Molineux Stadium in the English Premier League.
A first-half volley from Matheus Nunes was enough to ensure Wolves safety away from the relegation spots.
Chelsea are falling further away from a European place, and currently sit first on the bottom half of the table, nine points ahead of the victors of the tie.
Lampard’s men continue their action in the UEFA Champions League on Wednesday against the Spanish champions Real Madrid.
Reigning champions Manchester City close the gap on leaders Arsenal to five points after thrashing bottom placed Southampton 4-1 away. The Gunners have are away to Liverpool on Sunday.
In the other game, Tottenham’s 2-1 win over Brighton saw Son Heung Min score his 100th EPL goal and Harry Kane added to his tally and Danny Welbeck got a single goal for the Seagulls.
Manchester United 2-0 Everton
Aston Villa 2-0 Nottingham Forest
Brentford 1-2 Newcastle United
Fulham 0-1 West Ham United
Tottenham 2-1 Brighton
Leicester City 0-1 Bournemouth