Green was dual-registered for Nottingham and Leicester Tigers, which enabled him to get game time in the Championship. He made five appearances for the Tigers first team in 2009–10, notably against London Irish.[4]
Green's Tigers debut match was a friendly against the Classic All Blacks in 2008.[5] Despite not yet being 20, Green also played for the Leicester Tigers side in their 2009 friendly against South Africa at Welford Road, which the Tigers won 22–17.[6] His first league appearance was a home win against Saracens in March 2009.[7] Green was a member of the Anglo-Welsh Cup winning squad in 2011/12.
On 22 April 2019 it was announced that Green was to re-join Leicester that summer,[9] with his signing being welcomed by new teammate Dan Cole.[10]
Green started the 2022 Premiership Rugby final as Tigers beat Saracens 15–12.[11] In May 2023 it was announced that Green would leave Leicester at the end of his contract.
International career
Green has represented England U16A, and England U20, in the 6 Nations and IRB Junior World Championship, where England came fourth.[12]