Fixture list shows Man United have 'lots of enemies', says Jose Mourinho

United edged through to the quarter-finals of the Europa League with a 2-1 aggregate victory over Rostov, Juan Mata scoring the only goal of a tight second leg.
The game came three days after 10-man United lost in the last eight of the FA Cup to Chelsea and ahead of a Premier League trip to Middlesbrough at midday on Sunday.