Joey O'Brien has conceded he had only himself to blame for being sent off during West Ham's 3-0 defeat at Reading.
The full-back came off the bench to replace the injured Guy Demel early on and received two bookings in the space of five second-half minutes, the first after squaring up to Noel Hunt.
"Of course I didn't expect my day to turn out like that," he told West Ham's official website.
"It was a very bad day for the football club and for me personally getting sent off and watching the boys concede three goals.
"To be fair, the first one was silly on my behalf. I reacted to Noel because I thought he left a little bit in the challenge and I think the ref had given the free-kick.
"Being booked, I suppose committing a foul so soon after the incident it was in the referee's mind and he sent me off."