Manchester United midfielder Bruno Fernandes refused to blame David de Gea for defeat at West Ham.
De Gea's failure to make a routine save from Said Benrahma's matchwinning drive produced the only goal of the game.
"We are not capable of scoring a goal, we create so many chances but not ruthless enough. We conceded an unlucky goal and lost the game," Fernandes said. "I have to see it back but we don't need to focus on that [De Gea mistake].
"He has been saving us so many times so doesn't have to take the blame for the result. It is probably one of our worst seasons on scoring goals. We have people capable of scoring goals but we are not taking our chances."
"We have to focus on ourselves, everything is in our hands. We know what we need until the end of the season. It is tough for us, we have to get our energy back."