Crawford will defend his WBO belt and his status as one of the world's best fighters in the most difficult task of his career so far against Porter, live on Sky Sports, from 2am on Sunday morning. alphabounce blue American star Mayer risks her WBO super-featherweight title and her unbeaten record against France's IBF champion Hamadouche,live on Sky Sports from 2am on Saturday morning. alphabounce blue "The atmosphere was outstanding and that creates a bit of tension, but I thought our blokes handled themselves really well. alphabounce blue Cian Healy's selection as loosehead replacement means there is no room for Dave Kilcoyne, while the uncapped Dan Sheehan and Connacht's Finlay Bealham provide hooker and tighthead cover respectively.Ireland: alphabounce blue