Jose Mourinho admitted Manchester United should have made more of their first-half dominance against Basel after slipping to a shock Champions League defeat late on Wednesday night.
The visitors dominated the opening period but tailed off markedly after the break as Basel repeated their memorable win on United's last visit to St Jakob-Park in 2011.
Mourinho told BT Sport after the game: "We lost because in the first half we should be 5-0 up but we could not score one goal after being so dominant.
"It looks for many periods in the first half it was impossible not to win. I think the majority of the second half the feeling of everyone was OK, it will be 0-0, but they got the late goal.
"It is not fair for Blind to blame himself. He had a very positive game. We have to blame everyone on the pitch because we had so many chances.
"We don't need to win the (final group) match, we don't even need to draw, but obviously we will try to win."