Crysencio Summerville spared West Ham’s blushes as he came off the bench to score an extra-time winner against League One Burton and put Nuno Espirito Santos’ side into the FA Cup last 16 with a 1-0 victory.

Summerville made it six goals in his last seven when he struck in the 95th minute of a poor contest, cutting in from the left and beating two defenders before hitting a shot which deflected off Terence Vancooten to beat Brad Collins.

The Hammers may have won three of their last five in the Premier League to offer renewed hope of avoiding the drop, but a side sporting 10 changes from the 1-1 draw with Manchester United laboured against a side 47 league places below them, fourth bottom of League One.

They finished the match hanging on after Freddie Potts was sent off in the 101st minute for a poor challenge through the back of Julian Larsson, with Jack Armer, Kain Adom and Kyran Lofthouse all flashing shots narrowly wide for the hosts.

• As it happened | Teams | Stats
• FA Cup fourth round fixtures in full

Before kick-off, Hammers fans had arranged for a plane to fly over the Pirelli Stadium calling on directors David...