Wednesday night's game marks a first competitive meeting with the Bees since 1975, although we did play in a pre-season friendly at Old Trafford last year, which finished 2-2.
Luke Shaw and Scott McTominay are free of the suspension that forced them to sit out the draw at Aston Villa on Saturday, while forwards Marcus Rashford and Cristiano Ronaldo may be back in contention for starting spots after injury issues.
"Cristiano and Marcus were training yesterday, so we will train today," Ralf explained during his press conference. "But in the press conference before the Villa game, I was also convinced Cristiano would be available and he wasn't.