Major League Gaming, a league for professional gamers, on Thursday announced that it has received $7.5 million in a follow-on investment from Oak Investment Partners.

The funding will go toward acquisitions, broadband programming, infrastructure, and live events. 

“MLG has become a cultural phenomenon, and the management team has made competitive gaming really matter for pros, fans, and marketers,” said Ed Glassmeyer, managing partner at Oak Investment Partners,  in a statement.

MLG recently held its 2008 professional games from November 21-23 in Las Vegas. Games included Halo 3, Gears of War, Call of Duty 4, and Rainbow 6: Vegas 2.

The season opener for 2009 will be from April 3-5 in New Jersey.

For tournaments and events, players pay an entry fee and then participate in free-for-all or team battles for prize money.

MLG previously raised $10 million in a first round of funding from Ritchie Capital and $25 million in second round funding from Oak Investment Partners.