Doubles from Mario Mandzukic and Thomas Muller helped the visitors bounce back after Naldo had put them behind early in the Bundesliga clash
The striker was pivotal in the Red Devils' comfortable victory against West Brom, which he believes has set his team up for tough fixtures in March.
David Moyes' side was a comfortable winner over the struggling Baggies, with the visitors moving above Everton in the Premier League.
Goals from Mesut Ozil and Mikel Arteta and an Olivier Giroud brace sent the hosts through to the last four of the FA Cup.
Arsenal 4-1 Everton: Gunners into semis