Manchester United start their new campaign on Saturday just over a month on from their disappointing Europa League exit to Sevilla and with only one pre-season friendly under their belt.
Ole Gunnar Solskjaer's squad has been stretched to the limit with injuries and match fitness a major concern as they prepare to face Crystal Palace at Old Trafford on Saturday evening.
It leaves the Norwegian facing a number of selection dilemmas for their Premier League opener as he deals with the consequences of such a quick turnaround between seasons.
Ole Gunnar Solskjaer faces a number of selection dilemmas ahead of Manchester United's Premier League opener against Crystal Palace on Saturday evening
United's players (left to right) Juan Mata, Eric Bailly, Odion Ighalo and Bruno Fernandes at work in the gym this week after a pre-season that has lasted just over a month
Will Mason Greenwood be involved?
Greenwood hasn't exactly enjoyed the best start to the new season after being sent home from England duty in disgrace.
The 18-year-old broke Covid-19 protocols when he and Phil Foden invited two girls into the England team hotel in Reykjavik.
Solskjaer revealed on Friday that United had asked England manager Gareth Southgate not to select Greenwood - who made his senior international debut against Iceland - because he needed more rest following the short off-season.
The teenager initially trained alone at Carrington after returning home as a Covid precaution but has since been reintegrated within Solskjaer's squad.
Mason Greenwood may miss the Palace game with Solskjaer admitted he needs more rest
Greenwood (right) up against Victor Lindelof during one of United's training sessions this week
Solskjaer's comments about Greenwood needing more rest casts doubt on whether he'll be involved from the start - or at all - against Palace.
That could mean a start for Dan James on the right side of United's attack. With Greenwood in such excellent form last season, James barely featured after the restart but this could be an opportunity for the Wales international to stake his claim for a place.
James started last season with a debut goal in United's 4-0 thrashing of Chelsea but only scored three times thereafter.
Will Aaron Wan-Bissaka be sharp enough to start at right-back?
There are similar match-fitness worries over right-back Aaron Wan-Bissaka, who only started his pre-season at the beginning of the week.
Wan-Bissaka was forced to self-isolate for 14 days after a holiday in Dubai last month and this pushed back his return to training.
The 22-year-old enjoyed a positive first season at Old Trafford after signing from Crystal Palace, but his shortage of match fitness means Diogo Dalot is likely to play at right-back on Saturday.
Injuries and Wan-Bissaka's form restricted Dalot to just 11 United appearances last season and there was some speculation he would be sold this summer.
But the Portuguese defender could well have the opportunity to start the season ahead of Wan-Bissaka in that position.
Two weeks of self-isolation after holiday in Dubai means Aaron Wan-Bissaka is short of fitness
It could mean a rare start for Diogo Dalot in the right-back position against Crystal Palace
Should Ole pick David de Gea or Dean Henderson in goal?
Solskjaer wouldn't be drawn on which of David de Gea or Dean Henderson would start Saturday's match and said he wished people would say United have two good goalkeepers rather than comparing them.
But it's a choice Solskjaer now needs to make. Either he sticks with the Spaniard as the established but increasingly error-prone No 1 or shakes things up by picking the Englishman just back from a successful loan spell at Sheffield United.
Henderson hasn't made things