 In season 2018 Roach continued his good form making a further 9 appearances in the first 10 rounds of the Super Rugby competition including stand out performances against the Stormers from Capetown, the Sharks in Durban and 70 minutes of high energy play against the competition leaders the Crusaders in Christchurch.2019 saw a move to Melbourne Rebels where Roach added a further 8 super caps to his record taking his total to 49.He took up a playing contract with Tasman Mako in New Zealand's Mitre 10 Cup later that year he played 10 games then signed a contract to play for London Irish in the UK Premiership but that was terminated because of Roach having a foot injury.