Moyes at a loss to explain why Manchester played so poorly

Manchester United manager David Moyes said he was taken aback by the abject quality of his team's performance in a shocking 2-0 Champions League loss to Olympiakos on Tuesday.

The English champion must now attempt to overturn a two-goal deficit in the home leg of the last-16 tie on March 19 after being totally domianted at Karaiskaki Stadium in Piraeus.