David Moyes believes his Manchester United players are capable of putting Sunday's defeat to Liverpool behind them and producing a stirring Champions League comeback against Olympiacos.
The Reds must quickly forget the disappointing Barclays Premier League setback at home to Brendan Rodgers' side in order to focus on overturning a 2-0 deficit to the Greek champions, who have retained their title since the first leg, on Wednesday.
Moyes insists his side are capable of doing that and has asked for more of the same support from the fans as United go out "all guns blazing" at Old Trafford.
The manager told reporters: "The players are capable of turning it around. We're all desperate to put things right and make sure we play better to give the supporters here something to shout about.
"They shouted [against Liverpool] and we didn't give them anything on the field. When we went to Greece, the Olympicos fans played their part, so hopefully our fans will roar us on.
"We have to go for the throat to get the win. We won't be gung-ho but we will certainly go with a mindset to overhaul the deficit as quickly as we can.
"We won't be reckless as we could find ourselves with a bigger mountain to climb but we can be forceful. We have to be if we're to keep ourselves in the Champions League."
More: Moyes: Nothing went for us | Moyes ponders transfers