"If Joshua Zirkzee has the mentality to be a Manchester United player he will pull his socks up and he will come back from this," said BBC Radio Manchester's Gaz Drinkwater on the latest episode of The Devils' Advocate podcast. Drinkwater is referring to Zirkzee being booed off the Old Trafford pitch with just 32 minutes on the clock as Manchester United trailed Newcastle 2-0 on 30 December.
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The January transfer window is a notoriously tricky time to do business. BBC Sport has taken a closer look at five high-profile players whose futures are likely to come under scrutiny over the next month.
The winter window begins with sides at both ends of the Premier League table looking to strengthen as they battle for survival, European football and even the title