Otherwise it's as you were for McGahan's side as they chase a title they last captured in 2009.
Wallace, playing in his 17th game of the season becomes just the sixth Munster player to reach the 200th cap mark, having made his debut against Connacht in August 1997 alongside Ronan O'Gara.
Munster: F Jones; D Howlett, D Barnes, L Mafi, K Earls; R O'Gara, C Murray; M Horan, D Varley, J Hayes; D O'Callaghan, P O'Connell capt; D Ryan, D Wallace, J Coughlan. Replacements: M Sherry, W du Preez, S Archer, D Leamy, N Ronan, P Stringer, P Warwick, J Murphy.
Referee: Nigel Owens.