Alex, 23, has been with us since joining the academy 15 years ago. He came up through the ranks and made his debut in October 2015. He went on to make 148 appearances, scoring 15 goals. He has also represented Nigeria 36 times.
Head coach Unai Emery said: “Alex has made a big contribution here at Arsenal. He worked hard in the academy where he was an example to many young players and has been an important part of our squad. We wish Alex every success in the future.”
Everyone at Arsenal thanks Alex for his contribution and wish him all the best.