On the second episode of UFC's On The Fly, Gunnar Nelson, the Icelandic powerhouse of the welterweight division, comes to Dublin to make his final preparations before taking on Zak Cummings in UFC Fight Night Dublin at The O2 Arena on Saturday, 19th July. From pad work and training to hanging out with his fellow SBG training partners, Gunni gets up close and personal with the OTF crew.