defeat to Leicester City. On 29 August, he scored his first league goal after just three minutes away to Liverpool, and assisted a goal from Mark Noble as the Hammers won 3–0 for their first victory at Anfield since 1963. In March 2016, West Ham confirmed that they had taken up the option to sign Lanzini on a permanent deal, with effect from 1 July 2016. 2016–17 season Lanzini played 39 games in all competitions for West Ham, scoring eight goals. On 15 October 2016 he scored the only goal in a 1–0 win away to Crystal Palace to give West Ham their first away win of the season. His goal in a 1–0 win against Tottenham Hotspur on 5 May 2017 halted Tottenham's challenge to win the Premier League title. Tottenham, at the time, were on a nine-match winning run and were challenging Chelsea for the league title. On 9 May he was voted runner-up to Michail Antonio as Hammer of the Year and the Players’ Player of the Year. 2017–18 season Lanzini made his first appearance of the season on 26 August 2017, in a 3–0 defeat away at Newcastle United. In the same game, Lanzini was caught by the elbow of Aleksandar Mitrović, who was later banned for three games as a result of the incident. Lanzini scored his first goal of the season in a 1–4 defeat at home to Liverpool on 4 November 2017, before adding a further two goals to his tally on 13 January 2018 in a 4–1 away win at Huddersfield Town. On 13 May, he scored twice in a 3–1 win over Everton, on the final day of the season. 2018–19 season After being sidelined due to injury since May 2018, Lanzini made his first appearance of the season on 22 February 2019, coming on as a 76th minute substitute for Felipe Anderson in a 3–1 home win against Fulham. Lanzini made nine more league appearances during the 2018–19 season, scoring once in a 4–1 away win against Watford on the final day of the season. 2019–20 season Lanzini made his first appearance of the season on 10 August 2019 in West Ham's opening game against 2018–19 Premier League Champions, Manchester City, resulting in a 5–0 loss. Following his 100th Premier League appearance, it was announced on 30 August 2019 that Lanzini had signed a new long-term contract with West Ham,