 In October 2019, Marsh broke his bowling hand after punching a wall, following his dismissal, during a Sheffield Shield match against Tasmania.As a result of sustaining the injury, which was anticipated to take 6 weeks to heal, Marsh was forced to miss the start of Australia's Test summer.It was announced during February 2020 that he had joined Middlesex for the 2020 Vitality t20 Blast competition.