Centre John Hearty and hooker John Fogarty are doubtful ahead of Connacht's European Challenge Cup tie against Armatori Catania from Italy on Saturday.
Fogart's rib cartilage and Hearty's hamstring are a cause for concern.
“We will see how they improve as the week goes on but we have a good squad and there are quality players ready to slot into their positions if they are not fit,” said coach Michael Bradley.
Fogarty (if fit), back rows Colm Rigney and Matt Lacey and scrum-half Chris Keane are the four changes from last week's Celtic League loss to The Ospreys.
Connacht: M Mostyn; C McPhillips, J Hearty, K Matthews, D Yapp; P Warwick, C Keane; R Hogan, J Fogarty, S Knoop; C Short, A Farley; J Muldoon, M Lacey, C Rigney.
Replacements: D McFarland, J Merrigan, A Clarke, D Gannon, B O’Connor, C O’Loughlin, T Robinson.