Justin Harrison will lead out Ulster against the Ospreys at Ravenhill tomorrow night having recovered from the calf injury that saw him miss last weekend's defeat at the hands of Edinburgh.

Harrison will partner Tim Barker in the Ulster second row with Matt McCullough making way. Rory Best, who had been in doubt with an elbow injury picked up in the Ireland camp, starts at hooker while fellow international Tommy Bowe is named on the replacement's bench.

Coach Mark McCall has also included Declan Fitzpatrick amongst his reserves form the match at Ravenhill with Tom Court missing out.

Meanhwile, Connacht coach Michael Bradley has shuffled his deck for the visit of Edinburgh to Galway.

There are three changes to the starting line-up which lost to Llanelli with John Fogarty, having recovered from a back injury,  back to captain the side while John Hearty and Daniel Riordan come into the backline.

New signing Ray Ofisa is poised to make his debut with the province having been named on the bench

Ulster(v Ospreys): B Cunningham; M Bartholomeusz, P Steinmentz, P Wallace, A Maxwell; D Humphreys, I Boss; J Fitzpatrick, R Best, B Young; J Harrison (capt), T Barker; S Ferris, K Dawson, R Wilson. Replacements: P Shields, D Fitzpatrick, M McCullough, N McMillan, K Campbell, K Maggs, T Bowe

Connacht(v Edinburgh): D Riordan; M Mostyn, John Hearty, G Williams, K Matthews; M McHugh, C Keane; B Wilkinson, J Fogarty (capt), B Sturgess; D Gannon, A Farley; J Muldoon, M Lacey, C Rigney. Replacements: A Flavin, M Diffley, M Swift, R Ofisa, T Tierney, D Slemen, D Yapp