Arsenal secured a 1-0 victory over Crystal Palace in their latest Premier League match on October 26 at Emirates Stadium.
The Gunners' summer signing Eberechi Eze netted the sole and winning goal of the clash against his former club, Crystal Palace, in the 39th minute.
With this win, Arsenal further increased their lead in the Premier League table, where they currently rank at the top with 22 points in nine matches.
While Sunday's victory extended Arsenal's undefeated streak to six league games, some new concerns may have surfaced for the Gunners by the end of the London derby.
Arsenal's Bukayo Saka, who returned to action from an injury last month, was substituted off as Gabriel Martinelli came on to replace him in the 66th minute against Palace.
During his post-match press conference, Arsenal head coach Mikel Arteta explained his decision to sub off Saka and said,
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"He's been ill, he hasn't trained really, so we didn't know whether he was going to be fit, so he made a big effort to be available today," as per GOAL.
"The doctor was brilliant as well to guide us, to give us the best opportunity for him to be in the best possible condition, so he's managed to play a few minutes. The longer the game went on, the more he was going to fatigue and risk an injury, and we didn't want to take that risk."
Saka's substitution was not the only one that raised questions, as the game against Palace also saw William Saliba, Declan Rice, and Riccardo Calafiori being withdrawn.
Arteta also addressed the trio's situation and added,
"The first one was Willy who had to be taken out after the first half, Declan was struggling from the first half with a knock that he took and Riccy, let's see how that will go."
What's next for Mikel Arteta's Arsenal?
Arsenal are four points ahead of currently second-place Bournemouth in the top flight and will be looking to further increase the points gap in their upcoming league match against Burnley on November 1 at Turf Moor.
Prior to their next Premier League game, the Gunners will face Brighton & Hove Albion in the fourth round of the EFL Cup on October 29 at Emirates Stadium.
Arteta will be hoping that Saliba, Rice, and Calafiori's respective knocks and injuries are nothing major or long-term, allowing them to return to the pitch on Wednesday alongside Saka, given that the 24-year-old recovers from his illness.
Arsenal are also set to return to Champions League action against Czech First League club Slavia Prague on November 4 at Fortuna Arena in Prague.
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