They are among several changes to the side to take on Leinster in the Magners League at the Sportsground on Saturday (4pm).
Also returning to the starting fifteen are Fionn Carr, Ian Keatley, Frank Murphy, Ronan Loughney, Robbie Morris, Mike McCarthy and Ray Ofisa.
The surface of the pitch at the Sportsground has been covered in a bid to beat the big freeze.
Connacht: T Nathan; L Bibo, N Ta'auso, K Matthews, F Carr; I Keatley, F Murphy; R Loughney, S Cronin, R Morris; M McCarthy, B Upton, J Muldoon (capt), R Ofisa, G Naoupu
Replacements: A Flavin, J Hagan, M Swift, A Browne, C O'Loughlin, M Nikora, A Wynne
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