The pair missed Sunday's SPL defeat to Celtic through injury and have been rated as touch and go for the third round tie.
If they fail to pass a fitness test, Paatelainen expects them to be available for the weekend.
Killie (from): Bell, Clancy, Kelly, Hay, Wright, Gordon, Hamill, Bryson, Pascali, Eremenko, Forrester, Invincibile, Sammon, Letheren, Taouil, Old, Owens, Sissoko, Silva.







