A left-handed wicket-keeper/batsman, Green attended Windhoek High School, and made his senior club debut during the 2012–13 season, aged 15.
[1] He made his debut for the Namibian national under-19 side in December 2012, at the annual Cricket South Africa provincial under-19 tournament, and scored 50 runs from four innings.
[5] At the 2015 Africa Under-19 Championship, played in Tanzania, he was appointed the captain of the national under-19 side, and went on to lead the tournament in runs, with 271 from five innings.
[8] Green made his senior limited-overs debut for Namibia in September 2013, in a dead rubber against the United Arab Emirates as part of the 2011–13 ICC World Cricket League Championship.
[14] In October 2018, he was named in Namibia's squad in the Southern sub region group for the 2018–19 ICC World Twenty20 Africa Qualifier tournament in Botswana.