Alex Leapai announces retirement to preserve sight

SYDNEY -- Samoan-born Australian heavyweight boxer Alex Leapai has announced his retirement after being told he risked blindness if he continued to fight.

Leapai was best known for his 2014 fight against former world champion Wladimir Klitschko, when he was knocked out in the fifth round by the Ukrainian boxer.

A 36-year-old father of six, Leapai (30-7-3) had surgery on both eyes after the Klitschko fight and experienced more problems after his last bout, a unanimous-decision loss to Manuel Charr in Russia in May.

Leapai said Thursday that a specialist told him he risked losing the sight in his right eye if he continued to fight, adding: "I'm finished. I'm gone."