Wallabies star Quade Cooper has maintained his unbeaten record as a professional boxer with a knockout victory on Friday night in Adelaide.
The Queensland Reds playmaker floored Jack McInnes in the second round of their undercard bout ahead of Anthony Mundine's fight against Danny Green.
Cooper now has three consecutive wins in his pro career - all by knockout - after out-muscling an opponent more renowned for his mixed martial arts skills.
McInnes, who had also been knocked out in his previous two pro boxing fights, was felled by several consecutive head punches from Cooper, who will now return to pre-season rugby training with the Reds.
Quade Cooper and Jack McInnes fight during their heavyweight bout at Adelaide Oval.Credit: Getty Inages
Boxing fans took to social media before the fight to raise questions about the fitness of Cooper's opponent after photos emerged of the pair's weigh-in.
McInnes was pictured at the weigh-in looking out of condition. Fans were quick to take to Twitter to criticise McInnes' shape, while Cooper also copped some flak ahead of the bout.
One user compared McInnes to Homer Simpson, while another claimed he evoked memories of Nudge from Hey Dad.
Tim Tszyu, the son of hall of famer Kostya Tszyu who unified three world titles, also won his bout on the undercard.
Boxing fans raised questions about the fitness of Jack McInnes.Credit: Getty Images
Middlweight Tim Tszyu made it two consecutive victories in his professional career after notching 33 wins and one loss in his amateur one.
The 22-year-old stopped South Australian Mark Dalby in the third round of their bout, winning by a TKO after pounding his opponent from the outset.
And former AFL player Shane Tuck won the opening fight of the night, defeating Ivan Kolar in a points decision.
Tuck, the son of Hawthorn great Michael Tuck, claimed a unanimous points win against Kolar in his second pro bout.
Tuck, a cruiserweight, was knocked out in his professional debut in November 2015.
AAP