It is no overstatement to say that Manchester United's clash against Newcastle on Monday evening is the biggest of Ralf Rangnick's caretaker stint so far. The last couple of weeks have been far from plain sailing, and he will be keen to get back on track.
After he replaced Ole Gunnar Solskjaer, penning a six-month deal until the end of the season, he quickly set about drilling his players for his high-pressing style of play and enjoyed two Premier League victories, against Crystal Palace and Norwich.
However, since then, he has been handed headache after headache.