Funaki was born in Fanga 'o Pilolevu in Nuku'alofa, Tonga.[4]
In 2015, he moved to Auckland in New Zealand, where he played club rugby for Grammar TEC. That same year, he was named in the Auckland Colts squad.[5]
Due to visa problems, he had to go back to Tonga, but in 2016 he returned to New Zealand to play club rugby in Whakatāne for Paroa Sports Rugby Club in the Eastern Bay of Plenty competition.[4] In August 2016, he was named in the Bay of Plenty Development squad.[6]
In 2017, Funaki was named in the Bay of Plenty Wasps side to play the New Zealand Universities team in an Anzac Day match.[7] He also played a few preseason games for the Bay of Plenty Steamers, but wasn't named in the squad for the 2017 Mitre 10 Cup season.[4] Later in the year, he was named in the Bay of Plenty Sevens team.[8]
Senior career
Funaki moved to Hawke's Bay in 2018, where he played club rugby for Maori Agricultural College (MAC) Sports Association.[4] He was included in the Hawke's Bay squad for the 2018 Mitre 10 Cup season as a temporary injury replacement[9] and made his debut for the Magpies on Sunday 30 September 2018 against Canterbury.[10] It was his only Mitre 10 Cup game that year.
In 2019, he was named in the Magpies squad as a full squad member, but missed the entire 2019 Mitre 10 Cup season due to suffering two broken wrists.[11][12]
He was again part of the Hawke's Bay squad for the 2020 Mitre 10 Cup season[13] and earned his first start for the side on 15 November 2020 in an away game against Taranaki, in which he scored two tries and had a third controversially disallowed.[14][12] During that season, he helped the Magpies win the Ranfurly Shield,[15] successfully defend the Shield three times and win the Mitre 10 Cup Championship, thus securing a well-deserved promotion to the Premiership division.[16]
Although not named in the initial Highlanders squad for the 2021 Super Rugby season, Funaki joined the squad in May 2021 on an injury replacement contract.[17] He didn't get any game time for the Southern franchise.