The Chile international has made a impressive start to life in England and picked up the September prize following a string of eye-catching performances. His fine form has continued this month and he has been rewarded with his second successive award after a landslide victory in our club poll.
Alexis started October as he meant to go on, claiming an assist and then scoring in the comprehensive 4-1 victory against Galatasaray in the Champions League. He soon repeated the trick in the home draw with Hull City, opening the scoring before laying on the key pass for Danny Welbeck's last-gasp equaliser.
The energetic forward played a vital role in Lukas Podolski's late winner at Anderlecht, before taking advantage of two defensive errors to claim a brace in the 2-0 win at Sunderland that ended the month.
Welbeck was second in October's poll, while Kieran Gibbs completed the top three.
October Player of the Month - Results
Arsenal fan Abdul Gazali from Forest Gate, who voted for Alexis, will present the award before the Burnley game at Emirates Stadium.
He will also receive two tickets to the match.