West Ham came from behind to beat Serbian minnows TSC Backa Topola 3-1 to get off to a winning start in their Europa League campaign on Thursday night.
The reigning Europa Conference League champions were frustrated in the first half and fell behind on 47 minutes when Petar Stanic ran through on goal and slotted home.
But parity was restored when Nemanja Petrovic diverted Said Benrahma's cross into his own net in the 66th minute.
Four minutes later, the hosts took the lead through £38 million summer signing Mohammed Kudus, who headed in a James Ward-Prowse corner for his first goal for the Hammers.
Substitute Tomas Soucek put the game to bed in the closing stages when he headed home a corner from Ward-Prowse.
The result sees West Ham move top of Group A, ahead of Freiburg on goal difference after the Germans won 3-2 at Olympiacos.