The former Liverpool and Arsenal midfielder joined the Hoops earlier this year after his contract with Besiktas was terminated, following six months out of the game.
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The 35-cap England international has since become an important squad member at Parkhead, helping Celtic maintain their dominance in Scottish football.
Oxlade-Chamberlain made an immediate impact, scoring a dramatic late winner on his debut against Livingston and quickly winning over supporters.
Although seven of his 12 appearances came from the bench, his experience proved crucial in Celtic’s strong finish to the season.
Under Martin O’Neill, the club overtook Hearts on the final day to retain the league title and also secured the Scottish Cup.