Aleksandar Mitrovic was stood in an offside position , obscuring West Brom shot - stopper Foster 's view of the shot .
The West Brom shot - stopper ended up moving the wrong way before diving at the final second .
Aleksandar Mitrovic was stood in an offside position , obscuring West Brom shot - stopper Foster 's view of the shot , and the Baggies goalkeeper ended up moving the wrong way before diving at the final second .