In so doing, he became the youngest Englishman to score in the Champions League, surpassing teammate Theo Walcott's record.
Oxlade-Chamberlain started his first Premier League match for Arsenal in a 2–1 defeat to Manchester United at the Emirates Stadium on 22 January 2012, contributing an assist to a Robin van Persie goal.
On 25 April 2018, Oxlade-Chamberlain suffered a serious injury to his knee in the 15th minute of the Champions League semi-final first leg 5–2 victory against A. Roma, which prevented him playing further during the season, or participating in the World Cup Finals.
On 18 July, Liverpool confirmed that Oxlade-Chamberlain will miss the majority of the 2018–19 season, with Klopp stating: “It feels like now is an appropriate time to tell people that for Ox this coming season will be about focusing on recovery and rehab".
On 23 April, Oxlade-Chamberlain won the man of the Match Award in the FA Cup semi-final against Manchester City, having provided an assist for Nacho Monreal to score an equaliser. On 9 September 2017, Oxlade-Chamberlain made his debut for Liverpool, coming on as a substitute in a 5–0 loss to Manchester City.
He scored his first goal for the club on 17 October, coming off the bench to score in a 7–0 Champions League win over Maribor, a result which was the joint-largest ever away win in the competition, and the largest away win by an English club.
During the match, he scored the second goal of Southampton's 2–0 victory, his first senior goal.
2014 Mitsubishi Montero GLX 4x2 Automatic Diesel PHP 778,0002014 Mitsubishi Montero GLX 4x2 Automatic Diesel Php 778,000 only!
On 2 June 2013, he scored against Brazil in the official opening of the refurbished Maracanã Stadium, with the match finishing 2–2.
He came on as a second-half substitute and scored on a half-volley to bring the score to 1–1.
On 28 December, Klopp stated that Oxlade-Chamberlain's rehabilitation was going "ahead of schedule" and that "if he makes further steps like he did in the last few weeks then he can play Premier League football this season, which is nice to know." He also made a brief appearance against Israel on 5 September, coming on in the second half to claim three assists (including winning a penalty) to push England from a 1–0 deficit to a 4–1 comeback victory.
He made his first senior start for England on 2 June playing 66 minutes before being replaced by Theo Walcott in a 1–0 win against Belgium at Wembley Stadium, another warm-up match, and England's final match before the tournament.