He had a scan on Monday, which revealed the extent of the damage, and revealed that he will not be fit to play against Leicester City in tomorrow's English Premier League season opener, and Stoke City the following weekend.
PSG has already spent bigger than any team before it this summer.
Arsené Wenger and his wards need to start with a bang this season, overcome their annual mental woes and avoid any form of capitulation this season to be considered contenders for the Premier League crown.
"Being a night game might be better for us". The Gunners don't have much choice in defence with Laurent Koscielny suspended and Per Mertesacker, Shkodran Mustafi and Gabriel Paulista all struggling with injuries. On the other hand, the player's salary demands kept on rising as Arsenal offered improved terms of almost £300k, which was supposedly turned down by his camp.
Bellerin's position in the side has become less than certain with the formation change.
It was just 84 days ago that the battle was won and lost as Chelsea claimed a fifth title and even the players are chomping at the bit as they anxiously count the minutes to kick-off of yet another riveting season.
Persistent pressing and composure on the ball marked out the Egyptian as one of the Gunners' most impressive on Sunday.
Wenger would not say whether there had been any offers for Sanchez and said his close relationship with Paris Saint-Germain chairman Nasser Al-Khelaifi did not mean a move to the French capital was imminent.
The club's first signing was free transfer Sead Kolasinac.
But, for Leicester in particular, the 24-year-old should be unleashed further forward to support Lacazette.
He will, however, be hoping to have the kind of season he had past year when he made 34 league games as Chelsea won the Premier League title.
A clean slate for the club record signing presents the ideal opportunity and guarantees a starting role against Leicester.
The Chile forward missed pre-season after being granted extra time off following the Confederations Cup and has been ruled out of Friday's game due to an abdominal strain. He had a great season last term and everyone could see the improvement the longer he was here and how he adjusted to the league and playing for this club.