Fisiiahi is from a well known league family that includes the twin brothers Paul and David Fisiiahi.[3] Fisiiahi was an Ellerslie Eagles junior in Auckland Rugby League competitions and represented the Counties Manukau under-18's. Fisiiahi also played rugby union at his high school, Wesley College, and represented the New Zealand Secondary Schools Sevens team.[3][4] Fisiiahi was the school's sports dux in 2008. While playing for the Junior Warriors Fisiiahi completed a Diploma in Sport and Recreation at AUT University.[5] Fisiiahi made his debut for the New Zealand Warriors' Toyota Cup (Under-20s) team in 2009, playing in three matches. He also played for the Auckland Vulcans in the New South Wales Cup.[6][7] In 2010 he became one of the stars of the team, scoring 20 tries in 26 matches, and was a part of the 2010 Toyota Cup Grand Final winning team.[8] Fisiiahi was also involved in an embarrassing moment that saw him celebrate a try before scoring, only to be tackled and have the ball knocked out of his hands.[9] Fisiiahi finished his Toyota Cup career with twenty eight appearances and twenty tries.[10] He is eligible for New Zealand, Tonga and Niue. At the end of 2010 Fisiiahi was named in the Junior Kiwis squad that drew a two match series with the Junior Kangaroos.[11]
Rugby league career
2011
After scoring five tries in four trials during the 2011 pre-season, Fisiiahi made his NRL debut for the New Zealand Warriors in Round 1 of the 2011 NRL season against the Parramatta Eels at Eden Park on the wing in the Warriors' 24–18 loss.[12] Fisiiahi being named ahead of Kevin Locke, Krisnan Inu and Bill Tupou.[13] After playing only one NRL match, On 30 March 2011, Fisiiahi signed a four-year deal to keep him at the Warriors until the end of 2015.[14] In Fisiiahi's next match in Round 4 against the Cronulla-Sutherland Sharks at Owen Delany Park at Taupō, Fisiiahi scored his first and second NRL tries in the Warriors 26–18 win.[15] Fisiiahi played in the Auckland Vulcans 30-28 New South Wales Cup Grand Final loss to the Canterbury-Bankstown Bulldogs.[16] Fisiiahi finished his debut year in the NRL with him playing in 4 matches and scoring 2 tries for the Warriors.
On 20 April 2013, Fisiiahi made his international debut, playing for Tonga in the 2013 Polynesian Cup against pacific rivals Samoa, playing at fullback in Tonga's 36–4 win at Penrith Stadium. After Round 19 against the Wests Tigers, Fisiiahi suffered a season ending torn pectoral muscle injury in the Warriors 24–14 win at Leichhardt Oval.[18] Fisiiahi finished the Warriors 2013 NRL season with him playing in 11 matches and scoring 5 tries. Later in the year, Glen played for Tonga in their 2013 Rugby League World Cup campaign. Fisiiahi played in 2 of Tonga's 3 world cup matches. He scored his first international try against Scotland in Tonga's opening 26-24 match defeat.[19] and scored another try in his second appearance, this time against pacific rivals Cook Islands in Tonga's 22–16 win.[20]
