Born in Hamilton, Dunshea moved south to New Zealand's South Island at a young age and attended Lincoln High School just outside Christchurch. He moved on to Lincoln University after graduating from high school where he began studying Sports and Recreation and turned out for their rugby side in the Canterbury local leagues. In 2015, he helped them to win their first Division 1 title since 1981. He also won the national colts title with Canterbury's under-20 side in 2014.[1][4][5]
Senior career
Dunshea made his breakthrough in senior rugby playing for Canterbury in the 2015 ITM Cup where he played 11 times as they lifted the Premiership title with a 25–23 victory over Auckland in the final. A foot injury meant that he played no part in Canterbury's 2016 Mitre 10 Cup campaign which saw them finish as champions for the 8th time in 9 years.[1][2]
Super Rugby
An excellent debut season at provincial level for Canterbury saw him make the Crusaders wider training group for the 2016 Super Rugby season. A foot injury ruled him out for the entire year, but nonetheless he was promoted to the senior squad for 2017.[3]