The boss made a pleasing start to life as the club's interim manager on Sunday by leading the Reds to a promising 1-0 win over Crystal Palace.
But now he switches his attentions to Europe. And even though the team have already qualified for the knockout stages of the Champions League as Group F winners, our game with the Swiss champions offers a precious opportunity to grant both youngsters and senior players much-needed game time.
In an exclusive chat with club media's Stewart Gardner at Carrington, Ralf discussed his team selection, our new backroom staff appointments, Monday's Emirates FA Cup draw, Amad and Anthony Elanga, plus what he wants to see from his XI at Old Trafford on Wednesday evening.