The Reds signed the England international in a £40m deal from the north London outfit on transfer deadline day in the 2017 summer transfer window.
Oxlade-Chamberlain turned down the offer of a new deal with the Gunners to end his six-season stay at Arsenal.
Chelsea FC wanted the 24-year-old to bolster their title-winning squad but Oxlade-Chambrlain opted to move to the club that he supported as a boy.
After a slow start to his Anfield career, Liverpool FC boss Jurgen Klopp placed his faith in Oxlade-Chamberlain in the second half of the season.
The England international scored important goals in victories over Manchester City at Anfield in both the Premier League and the Champions League.
However, Oxlade-Chamberlain’s season was cut short after the versatile midfielder suffered a serious knee problem in a 5-2 win over AS Roma in the first leg of their semi-final on Tuesday night.
Former Liverpool FC striker Bellamy believes Oxlade-Chamberlain’s decision to move to the Reds was a great decison.
“He made a brilliant decision going to Liverpool,” Bellamy told Sky Sports.
“You could see his talent at Arsenal but I didn’t know what position he was. What type of footballer he is. You can see what type of football he is at Liverpool. Liverpool suit him.
Oxlade-Chamberlain has scored three goals and has made seven assists in 32 games in the Premier League this term.
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