Crysencio Summerville scored his first goal in a West Ham shirt as they climbed past their visitors to 13th in the table on 11 points after nine games, level with 14th-placed Manchester United.
Browsing: Jarrod Bowen
Said Benrahma had opened the scoring for West Ham with a 62nd-minute penalty kick in Prague’s Eden Arena.
After Arsenal’s Thierry Henry and Manchester United duo Cristiano Ronaldo and Nemanja Vidic, the 30-year-old joins an exclusive group of players to win the award in more than one campaign.
The Red Devils prevailed 3-1 at Brentford in midweek, while David Moyes’s men went down 3-2 at home to Leeds United.
The Hammers looked to be cruising towards a victory which would have seen them draw level with Chelsea in fourth after goals from Jesse Lingard, Jarrod Bowen and Tomas Soucek put them in complete control.
West Ham have enjoyed six wins in a row in all competitions.
After thrashing Manchester City 5-2 last weekend, second-placed Leicester were brought back down to earth as their three-game winning run came to an end at the King Power Stadium