 In his second spell as a Leicester Tigers player, Grindal was in the matchday squad for 2 Twickenham Premiership Finals in 2010 and 2011, picking up an Aviva Premiership winner's medal as a replacement in 2010.He made a further 59 appearances for the first team in these 3 seasons.He joined Bristol for the 2012/13 season, and was Club Captain for the 2013/14 season, making 43 appearances in his 2 seasons there.