“We argued for a week about the money, but we finally got it done and all sides were OK,” Arum said to Kevin Iole of Yahoo Sports “But Peter Nelson leaned on Golden Boy and forbade them from going ahead on May 12 because it would interfere with the delay between Golovkin and Canelo. They [Golden Boy] do a lot of fights with HBO and so they pulled out.
http://www.boxingscene.com/arum-slams-hbo-nelson-claims-he-blocked-lomachenko-linares--125297
http://www.boxingscene.com/arum-slams-hbo-nelson-claims-he-blocked-lomachenko-linares--125297