Mourinho stated Sanchez was suffering from an unspecified injury and that is why he missed the fixture with Brighton.
The Portuguese then levelled the accusations that some of his players lacked the motivation to face Brighton, just weeks ahead of a FA Cup final against Chelsea.
- Brighton registered only their second win in 19 matches against Manchester United in all competitions, with this their first since a 1-0 victory in the top flight in November 1982.
Manchester United finished in sixth place in the Premier League table last term in Mourinho's first season in charge at Old Trafford.
The newly-promoted side started on a good note by asking the right questions at United's defense. "We are probably not as good as people think we are individually".
"The attitude from the first minute and especially in the first half, they had more appetite".
"We had the target to get the points to finish second, and they showed that for them it is more important than for us to finish second". The next two games are crucial to see who will play in the final which United can not afford to lose.
Mourinho has often been asked this season about what Martial and Rashford, in particular, need to do to start more games. Maybe now you understand why some players don't play more than others. "Why always Lukaku? Why always this player?'" Mourinho said.
"For 10 months I get asked 'why always Lukaku?" This proves decisive as it gave United no time on the ball and caused them to make mistakes e.g. loose passes.
Gary Neville says Brighton'sPremier League survival will earn Chris Hughton the plaudits he has long deserved.
But they got the helping hand they needed from the goal line technology system to seal another campaign in the Premier League on 57 minutes.
Despite Friday's bad news United are still in pole position to finish second place in the league, carrying a five-point lead over Liverpool with two league games remaining.
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