The 2016–17 season started with Bayern winning the 2016 DFL-Supercup on 14 August. Five days later, Bayern defeated Carl Zeiss Jena 5–0 in the DFB-Pokal first round, with the help of Lewandowski's hat-trick during the first half and assist to Arturo Vidal in the 72nd minute. He opened the 2016–17 Bundesliga season with another hat-trick in a 6–0 victory against Werder Bremen. On 13 December, Lewandowski signed a new contract with Bayern, keeping him at the club until 2021.