Manchester United have today announced their 25-man squad heading to China for the club's pre-season tour.
While the likes of Zlatan Ibrahimovic, Bastian Schweinsteiger and Marouane Fellaini haven't been included - they have been given extra time off following their Euro 2016 campaigns - a number of top stars have been selected, including the returning Wayne Rooney.
Jose Mourinho's side will have their work cut out as they prepare to take on the duo of Borussia Dortmund and Manchester City.
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But which players will head to China in the pursuit of proving themselves to their new manager?
Every player will be determined to prove their credentials, but it's fair to say that there are a few stars who really must step up or risk being sold in this transfer window.
Here are six players who must perform:
It actually appears that Will Keane has been handed a place in the United squad over youngster James Wilson, but that doesn't necessarily mean that the former will stay on at Old Trafford ahead of the new season.
Keane is still some way off his peak, but at 23-years-old, now appears to be the time for him to become a first-team player at United.
He scored the first goal of the Mourinho-era against Wigan on Saturday, but is he really good enough to compete with the likes of Rooney, Marcus Rashford and Ibrahimovic? He's failed to truly impress during a number of loan spells away from the club, yet he clearly has something about him. It's up to Mourinho to find it.
We all know the story involving Juan Mata and Mourinho, but will the technically-gifted playmaker manage to prove the Special One wrong?
Well, much like Keane, Mata impressed at the DW Stadium last weekend and should be looking forward to games against City and Dortmund.
He's clearly not a Mourinho-type player, but the new United boss has been proved wrong in the past. The versatile star has a shot at redemption but can't rest on his laurels.
A recent report in The Sun actually claimed that Mourinho is set to keep Adnan Januzaj at the club after the winger impressed him in training. Expressing himself in training is all well and good, of course, but it's time for Januzaj to show exactly what he can do when it matters most.
He shined under David Moyes' regime, but his career has stalled over the course of the last two years. At just 21-years-old, it would be foolish to write Januzaj off and he could yet have an influential role to play at the Theatre of Dreams. It's crucial, however, that he quickly adapts to Mourinho's system.
Dutchman Memphis Depay clearly has so much talent - he was incredible for PSV during the 2014/15 season - but his career on English soil has got off to a turbulent start.
Memphis was poor last season and found himself on the bench more often than not. It must be noted, however, that the majority of United's exciting forward players failed to get going under Louis van Gaal, so all is not lost for the club's No.7. Confidence is key and if Memphis can find his, then there's no reason why he won't be able to come to prominence.
Argentina international Marcus Rojo has had a topsy-turvy United career so far. In all honesty, he just hasn't been able to establish himself as a leading player for the club and has struggled to produce the goods on a consistent basis.
United fans clearly see him as a liability, but will he be able to give Mourinho something to think about? Now Luke Shaw has returned from his lengthy injury lay-off, it's extremely unlikely that Rojo will be made the club's first choice left-back, while he hasn't exactly done enough to prove that he deserves a role at the heart of the United defence.
Daley Blind enjoyed a fairly successful second season at Old Trafford last term as he played a key role alongside Chris Smalling at the back, but it's far from certain as to whether Mourinho will offer him a similar role this term.
The versatile ace slotted in at the back against Wigan, but will he stay there? Mourinho is reportedly a fan of Phil Jones, while he has also secured the signature of Ivory Coast international Eric Bailly. It's going to be tough for Blind, but perhaps his willingness to play in a number of positions could just about save him from the axe.
Manchester United fans: do you expect any of these players to leave this summer? Have your say below!