West Ham crashed out of the FA Cup as their former manager Slaven Bilic led West Bromwich Albion to a surprise 1-0 win.
Albion boss Bilic, sacked by the Hammers in 2017, made eight changes as he prioritised the Championship leaders’ push to return to the Premier League.
But Albion took a shock lead at the London Stadium when Conor Townsend drilled in his first goal for the club after nine minutes.
West Ham, struggling in the top-flight under new boss David Moyes and now without a win in four games, were given a lifeline when West Brom’s Semi Ajayi was sent off in the 72nd minute after his push earned a second yellow card.
Sebastien Haller should have equalised with a headed chance and Manuel Lanzini then dragged his shot wide, but Albion held on.
West Ham were jeered off by their furious fans, while Croatian Bilic, who also played for the east Londoners, celebrated a sweet success with his Albion players.
At St Mary’s, Christian Eriksen was left out amid reports in Italy suggesting the Tottenham midfielder has agreed a move to Inter Milan, while Gedson Fernandes made his full debut for Jose Mourinho’s men.