The injury to Maitland-Niles was obvious but now, the club has confirmed the extent of the knock picked up by the 20-year-old.
"Maybe not especially at left back, but he was playing well in the first 25 minutes on Sunday".
Kolasinac should return to training from his knee problem in October, while club captain Laurent Koscielny continues his recovery from Achilles surgery.
The Gunners head to Chelsea on Saturday, and provided an injury update on Thursday morning, ahead of Emery's scheduled press conference.
Man City's De Bruyne suffers knee injury in trainingNaija247news
But the importance of De Bruyne , easily the club's best player in the record-breaking 2017/18 season, can not be overstated. Any significant lay-off would come as a serious blow to City's hopes of successfully defending the Premier League title.
Priyanka Chopra debuts her engagement ring
First, Chopra met Jonas' family at his cousin's wedding in New Jersey after which Nick traveled to India to meet Chopra's mother. Akash-Shloka's Pre-Engagement Bash: Isha Ambani's A Stunner, Priyanka-Nick Walk Hand-In-Han. .
Premier League Preview: Tottenham vs. Fulham
Tottenham Hotspur and Pochettino started off their English Premier League campaign on a winning note as they beat Newcastle 2-1. Many speculated he was injured, but he earned the ire of manager Slavisa Jokanovic by publicly declaring himself fit.
Meanwhile, defender Carl Jenkinson is expected to be out for a similar length of time as his colleague because of "a significant sprain to his right ankle".
Arsene Wenger's successor faced criticism following Arsenal's attempts to play out from the back in his first league game in charge of the Gunners.
France worldwide Laurent Koscielny, who missed his nation's World Cup-winning campaign with an Achilles tendon tear, is on the mend and is expected to return to training in November.
The good news is that Nacho Monreal is back in training, but I doubt very much whether he will be fir for the Chelsea game, and I guess it is possible that Danny Welbeck could fill in at left-back...