The centre will be sidelined until the new year after suffering a severe and complex dislocation of the shoulder. Thomas will undergo surgery at the Alexandra Hospital in Cheadle tomorrow, and his recovery time is expected to be three months.
Scrum-half Dwayne Peel suffered a 'stinger' to the shoulder, but Sale hope the Wales international will be available. Full-back Mathew Tait and prop Andrew Sheridan are also expected to be fit, after missing the historic victory in France with arm and hamstring injuries respectively.
Munster, who have a number of injury concerns of their own, are due to name their squad later today.
Scrum-half Dwayne Peel suffered a 'stinger' to the shoulder, but Sale hope the Wales international will be available. Full-back Mathew Tait and prop Andrew Sheridan are also expected to be fit, after missing the historic victory in France with arm and hamstring injuries respectively.
Munster, who have a number of injury concerns of their own, are due to name their squad later today.

