West Brom manager Steve Clarke hit out at referee Mike Jones after he failed to spot a dive by Arsenal midfielder Santi Cazorla as the Gunners recordeda 2-0 win at Emirates Stadium.
Arsenal took the lead in controversial fashion midway through the first half as Spain midfielder Cazorla flung himself to the floor following a challenge by Steven Reid, with replays showing there was no contact. Mikel Arteta converted the resulting penalty.
"There was zero contact - it wasn't even close. I am not sure what the referee saw," Clarke said. "It was a bad decision for us and obviously changed the shape of the afternoon. It could have been a nervous afternoon for Arsenal. At 0-0 they hadn't created too much.