Villarreal await in Poland but the focus now is on Villa as United continue a tough run of four matches in eight days, with home games against Leicester and Liverpool following hot on the heels of Sunday's match.
“Sunday at 2pm is not the problem," Solskjaer said. “That was always scheduled. Tuesday, Thursday after Thursday, Sunday, that's a big problem.
“I trust my players to get a result (against Aston Villa). First of all, Sunday is a big game for us. Of course, Sunday is a massive game and we're looking forward to it after the boost of getting into a final.
“This will hopefully give us energy and then let's see what we do Tuesday and Thursday. We just have to take it day by day and hopefully we can play those games."