Ash
Michael Lynagh (62)
I packed down against Steve's brother or cousin in 2nd or 3rd grade a couple years ago. Guy absolutely obliterated my spine as I gave a good 20kg on him + 6 inches. I still maintain I'm an inch shorter after that season.
There were four Kefu brothers: Toutai (number 8.), Steve (inside centre), Fa'leo (spelling?) (number 8.), and Mafileo (outside centre). Toutai went to Cav Road high school I think, the next three to BSHS.
Toutai everyone knows about, and probably Steve too.
Fa'leo was supposed to be the most talented brother, and played first grade premiership rugby as young as 16 (I think?). However, he badly damaged his neck at the bottom of a ruck around ~20 years old and was never expected to play again. He return to premiership rugby eventually, but was never the same player. If you packed down against a Kefu, it may be been Fa'leo if he was still playing, although I thought he did eventually give it away. He played a hard style of rugby for a young kid, from what I remember. Fa'leo was definitely not small.
Mafi went to France to play rugby at a young age, and ended up at Toulon a few years later before eventually returning to the ITM cup a couple years ago. I think he's retired from rugby now, but am not too sure. He was the smallest of the brothers height wise, but he sure grew into his body in Toulon.