Fundora (23-1-1, 15 KOs) retained his WBC super welterweight world title with a 7th-round stoppage of Australia's Tszyu (25-3, 18 KOs) in the co-feature to Manny Pacquiao vs. Manny Barrios on Saturday night at the MGM Grand Garden Arena in Las Vegas, Nevada.

It took little time for Fundora to send a message to Tszyu, landing a thudding left in the first round that dropped Tszyu to the canvas. Tszyu beat the count, but it took several rounds before it appeared he'd shaken off the knockdown and was fully back in the fight.

Boxing fans and pundits have been blown away after Tim Tszyu was battered into submission before the eighth round of his world title fight against Sebastian Fundora. And there are genuine concerns about what it means for his career.