Arsenal returned to the top of the Premier League table after a brace from England midfielder Alex Oxlade-Chamberlain helped the Gunners sink Crystal Palace at the Emirates Stadium.
The first goal came in the 47th minute after Santi Cazorla played an intelligent ball to Oxlade-Chamberlain, who calmly finished the ball past Speroni.
The second goal came in the 73rd minute after Oxlade-Chamberlain linked up well with French striker Olivier Giroud, who ran from the halfway to strike the ball past Speroni to seal the game for Arsenal.
This game was Oxlade-Chamberlain's first start for Arsenal since the young midfielder suffered a knee injury in the opening game of the season, which ruled him out for four months.
Palace came close to equalising but Cameron Jerome's diving header was saved superbly by Wojciech Szczesny to keep Arsenal in the game.
The result takes Arsenal back above Manchester City in the Premier League table, although Manuel Pellegrini's side will regain the top spot if they beat Jose Mourihno's Chelsea side at Etihad Stadium on Monday.
Arsenal are now faced with a set of difficult fixtures in an 11-day period. First they travel to Anfield in the Premier League where they'll face against Liverpool, and then the host Premier League champions Manchester United at the Emirates Stadium.
Arsenal must then face Liverpool again, but this time in the FA Cup fifth round.
And to round off this list of challenging fixtures, the Gunners will play against the champions of Europe, Bayern Munich, in the last 16 of the Champions League.
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