Manchester United defender Marcos Rojo has admitted he's still fatigued on the back of a three-month injury lay-off.
The Argentinian defender was sidelined with a shoulder injury, but made his return to action last month for United's Europa League victory over FC Midtjylland.
Since then, Rojo has been a mainstay of Louis van Gaal's team and managed 62 minutes in the Europa League loss against Liverpool on Thursday - but has conceded he's been playing 'tired' recently because of an illness.
"Every day I’m getting better," he told MUTV. "I’m a bit tired right now as I’ve been ill recently and when you play games like these, you leave everything out there on the pitch.
"The manager knows this and asked me to give as much as I could in recent matches. It’s difficult when you’ve been out for the best part of three months to come back and hit the ground running, but I’m getting stronger with every game now."
The Red Devils take on Manchester City this afternoon, and under-fire boss Louis van Gaal has already admitted that if his side lose then their top four hopes are over.
Rojo, who suffered a dislocated shoulder during the derby last year, believes the team that are able to keep their cool will walk away with all three points.
"I always try to be quite relaxed before these games," he explained. "The way I see it is if you go into this kind of game overly pumped up, you can get yourself into trouble - you have to try and keep calm. There's no point being fired up and getting a silly red card as that doesn't help the team.
"You have to keep your head all the way through and do everything you can to win."
Van Gaal's side currently sit four points behind Manchester City in the race to secure Champions League football, although the two sides are separated by West Ham, who drew with Chelsea yesterday.