Lefau was born in Auckland, New Zealand[1] to a Samoan father and New Zealander mother.[4] Raised on rugby union, he had never heard of Australian rules football prior to moving to Australia in 2012 where he joined his father in Australia to attend year 8 of school. A talented rugby player, he was scouted by the National Rugby League team Melbourne Storm who signed him up as a "development player" being part of the club's U16 and U18 lists.[5]
Lefau was introduced to Australian rules football in his late teens and decided to try out for the Gippsland Power however was not selected. Instead he played for the local Melbourne side St Kilda City Football Club in the Southern Football Netball League where he excelled, kicking 25 goals in one Under 19s match.
After a consistent season in the VFL Lefau was selected as a rookie by Richmond in the 2023 AFL Draft Pre-season supplemental selection period.[8] Less than a month later he had made his AFL debut in Round 2, 2024 against Port Adelaide though had been rushed into an injury ridden side and was not given much game time.[8] In Round 3, he kicked 2 goals against the Sydney Swans.[9]
