Gavin Duffy returns to the squad after World Cup duty.
Skipper Andrew Farley is still out through injury, while hooker Adrian Flavin, who has captained the side for the past two games, has also been ruled out with a cheekbone injury picked up in the game against Glasgow.
Connacht coach Michael Bradley will announce his side on Thursday morning.
Connacht squad: A Browne, M Deane, T Donnelly, G Duffy, P Durcan, J Fogarty, D Gannon, K Matthews, B McGovern, M McCarthy, C McPhillips, J Merrigan, R Morris, J Muldoon, J O'Connor, R Ofisa, C O'Loughlin, C Rigney, M Swift, O Treviranus, A Tuilevuka, B Wilkinson, A Wynne.
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