Arsenal are concerned that Chile international Alexis Sanchez could miss the start of the new Premier League season.
This has been reported by the Daily Mail, who claim that the Gunners are closely monitoring the former Barcelona star but are concerned that he will miss the side's opening-day showdown against rivals Liverpool on August 14.
Sanchez, 27, endured a couple of frustrating injury problems throughout the course of last season and will be determined to paly a key role for the north London outfit this term.
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Ultimately, after picking up an ankle injury during the Copa America, it appears that there's every chance the dynamic forward will have to watch on from the sidelines at the start of the new campaign.
The worry for Arsenal boss Arsene Wenger, however, is that Sanchez may not be the only key man missing for the game against Jurgen Klopp's side.
Indeed, the Mail report that the quartet of Olivier Giroud, Mesut Ozil, Laurent Koscielny, Aaron Ramsey are not scheduled to return to training until August 8 - just one week before the opening game of the season.
But what does that mean? Well, according to the report, the four players set for a late return are all unlikely to feature against the Reds.
And with England international Danny Welbeck out for the long-term, Wenger has a lot to think about over the coming weeks.
Interestingly, the report tips Theo Walcott to start in attack on August 14. Walcott, of course, recently failed to secure a place in Roy Hodgson's England squad for Euro 2016 and has been the subject of criticism for a number of below-par displays.
With the transfer window currently open, Wenger could still recruit a new striker, but things haven't exactly started well for him on that front.
Indeed, Leicester City striker Jamie Vardy, who netted 24 Premier League goals last term, has already snubbed the north London side's advances. Vardy opted to sign a new long-term contract with the Premier League champions instead of completing a move to the Emirates.
There has been talk that the club could move for Argentina international Gonzalo Higuain, but his reported £80 million price tag will surely prove a stumbling block for the Arsenal hierarchy.
Higuain may well have scored 36 goals in Serie A last season, but will Wenger and co. really take a gamble on him?
Arsenal fans: are you worried about your club's opening-day fixture against Liverpool? Have your say below!