Pacquiao vs. Hatton

May 2, 2009, Pacquiao fought Ricky Hatton for the latter's IBO and Ring Magazine Light
Welterweight titles at MGM Grand Las Vegas in Las Vegas, Nevada.The fight was originally placed in jeopardy due to disputes with both camps over the fight purse money. Eventually,
the money issue was settled and the fight went on as scheduled. HBO aired the contest.

Pacquiao started the fight strong, knocking down a sluggish Hatton twice in the first round. At the bell, Hatton seemed to have re-grouped, only to get knocked down for the third time 2:59 into the second round, awarding Pacquiao the win by KO.
http://en.wikipedia.org/wiki/Manny_Pacquiao