West Ham United boss Sam Allardyce shrugged off their Capital One Cup defeat to Sheffield United.
West Ham reached the semi-finals of this competition last season but it was their wastefulness in front of goal which once again cost them, with Allardyce also impressed with Blades goalkeeper Mark Howard's display.
"We have lost on penalties at the end of the day," he said.
"The fans know we should've won the game. We haven't been outplayed by Sheffield United, they made life difficult for us by playing that defensive unit. That is well within their rights when they come here.
"We opened them up time and time again with patient, good quality football, but at the end of the day the end product deserted us - in the main due to their goalkeeper.
"We gave an own goal away and Sheffield United had one shot on target in the 90 minutes and one on target in extra time.
"At the end of the day it is our fault. It was an inspired performance from their goalkeeper - whatever we threw at him he saved it or blocked it.
"From our point of view it is a frustrating night after good performances from players who have just joined us, like Sakho and Enner."
