Cazorla & Mikel Arteta. This ended after a 3–2 defeat to Manchester United, when Koscielny missed four games through injury, including a North London derby at White Hart Lane. He returned in a 3–1 away defeat to Barcelona in the Champions League, as Arsenal exited the competition at the round of 16 for the sixth season running. Koscielny scored his fourth of the season in a 3–3 draw with West Ham. 2016–17 season Koscielny started his first game of the season in a goalless draw against Leicester City. On 10 September, he was given the role of captain and scored a fine overhead kick to equalize for the Gunners in a game which they then won 2–1 against Southampton making him Arsenal's highest goal scoring defender in EPL history, with the landmark achieved on his 31st birthday. Koscielny was involved in a controversial incident at the end of Arsenal's 1–0 win over Burnley, in which Koscielny and Alex Oxlade-Chamberlain were involved in a goal which appeared to be scored from an offside position after hitting Koscielny's arm. Neither the perceived deliberate handball or offside offenses were deemed to be infringements and the goal was later correctly credited to Koscielny. On 12 January 2017, Koscielny, alongside teammates Francis Coquelin and Olivier Giroud signed a new long-term contract with Arsenal. Two days later, he made his 200th appearance for Arsenal in the Premier League on a 4–0 away victory against Swansea City. On the last day of the 2016–17 season he received red card for a tackle on Enner Valencia of Everton. Arsenal lost an appeal and Koscielny was banned for three games, meaning he would miss the FA Cup final. Although he was absent from the FA Cup final, Koscielny lifted the trophy alongside Per Mertesacker. 2017–18 season On 3 May 2018, Koscielny suffered an Achilles injury during the UEFA Europa League semi-final second leg match against Atlético Madrid, and was ruled out for at least six months. 2018–19 season Following the retirement of Per Mertesacker, Koscielny was made the captain of Arsenal. He made his first appearance of the season against Southampton in a 3–2 defeat. Koscielny played what proved to be his last game for Arsenal, as captain, in a 4–1 defeat to Chelsea, in the 2019 UEFA Europa League Final. 2019–20 season On 11 July 2019 it was reported that, with a year left on his contract, he