BoxingScene.com has learned that Ross Greenburg is out as HBO's President of Sports, and that his removal is expected to be announced as early as Monday, according to multiple sources familiar with the network's decision.

Much of Greenburg's demise can be traced to the loss of boxing's biggest star, eight-division titlist Manny Pacquiao (53-3-2, 38 knockouts), to rival cable giant Showtime in May.

Link: Sources: Ross Greenburg Parting Ways With HBO Sports