Tierney's impressive performances for Arsenal following the resumption of the Premier League after the COVID-19 pandemic saw him receive Arsenal's Player of the Month award for June. He scored his first goal for Arsenal on 26 July, in a 3–2 win against Watford on the final day of the 2019–20 Premier League season. On 1 August 2020, Tierney was selected to start in the FA Cup Final against Chelsea, as Arsenal won their 14th FA Cup.