When Belgian forward Leandro Trossard struck to put Arsenal ahead in their 2-2 draw at Sunderland on Saturday, it was hard to remember that just months earlier he had been cast as a sale candidate.
Arsenal saw their winning run ended by Sunderland, while Chelsea claimed a convincing victory over Wolves in Saturday's Premier League action.
Mikel Arteta has described Granit Xhaka as "one of the signings of the season" ahead of Arsenal's reunion with their former midfielder when they face Sunderland at the Stadium of Light on Saturday.
Arsenal's Premier League momentum has taken a hit after star striker Viktor Gyokeres suffered a hamstring injury that will rule him out of Saturday's trip to Sunderland.
Arsenal defeated Slavia Praha 3-0 in Prague as North London rivals Tottenham Hotspur hammered Copenhagen 4-0 in the Champions League on Tuesday.
Mikel Arteta has admitted Arsenal must remain grounded despite their stunning start to the season, as the Gunners continue to battle on multiple fronts at home and in Europe.