McCall will announce his team on Thursday at 12noon.
According to the oficial Ulster website this all ticket match is not a sell out yet but with less than 500 terrace tickets left supporters are urged to purchase their tickets as soon as possible.
In reminding it's readers that Ulster have everything to play for the site suggests that there's "every possibility Ulster will face a full strength Munster team as they prepare for their Heineken Cup clash against Llanelli the following week." Apparently, news of the injuries to Paul O'Connell, Mick O'Driscoll, Anthony Foley, Anthony Horgan, Shaun Payne and John Kelly hasn't reached Belfast yet.
Backs: Kieran Campbell; Isaac Boss; David Humphreys; Paddy Wallace; Andrew Trimble; Paul Steinmetz; Paul McKenzie; Bryn Cunningham; Tommy Bowe; Andrew Maxwell
Forwards: Justin Fitzpatrick; Bryan Young; Simon Best; Paul Shields; Declan Fitzpatrick; Rory Best; Justin Harrison ; Tim Barker; Ryan Caldwell; Kieron Dawson; Roger Wilson; Stephen Ferris; David Pollock