Kidney said: "Brian Carney trained fully today (Tuesday) and we'll just have to see. Unless there is any reaction to it, then he should be available."
Paul Warwick and Barry Murphy, who both played in UL Bohemians' AIB League win over Galwegians last Saturday, have retained their places in the squad, along with back rower James Coughlan who had a big influence in Dolphin's league victory over Lansdowne.
But adding to Munster's injury list is flanker Niall Ronan, who is nursing a hamstring injury, while lock and captain Paul O'Connell (back strain) is four weeks away from a return.
"They've lost their first two Heineken Cup games and won't want to go three on the trot. They're going to turn up alright."
MUNSTER Squad (v Llanelli Scarlets): Backs (13) - Shaun Payne, Kieran Lewis, Brian Carney, Anthony Horgan, John Kelly, Rua Tipoki, Lifeimi Mafi, Ian Dowling, Ronan O'Gara, Peter Stringer, Gerry Hurley, Paul Warwick, Barry Murphy.
Forwards (12) - Marcus Horan, Jerry Flannery, John Hayes, Donncha O'Callaghan, Mick O'Driscoll, Donnacha Ryan, David Wallace, Denis Leamy, Frankie Sheahan, Tony Buckley, Anthony Foley, James Coughlan.