HBO airs Pacquiao's fights, but Mayweather has an exclusive contract with rival network Showtime/CBS.
"We are not an impediment to this fight," HBO said in a statement. "We stand ready to go."
"The principals need to agree to terms and come to a deal," the network added.
HBO and Showtime have previously worked together to promote a fight, when Lennox Lewis and Mike Tyson faced off in June 2002.
RingTV reported that among the "major stalling points" is that HBO is insisting on being able to show the replays of the fight.
For the Lewis-Tyson bout, the network who represented the winner earned replay rights; in that case, HBO did after Lewis, their fighter, knocked out Tyson.
source: www.abs-cbnnews.com
