Defender Frazer Richardson tweaked a groin muscle in Sunday's 2-2 draw with Wigan and will be assessed before Mowbray finalises his plans.
Keeper Jason Steele returned from an ankle problem sustained in the 1-0 win at Charlton on August 10 for the game at the DW Stadium and although the felt the after-effects, he will be available.
The Teessiders otherwise have a relatively clean bill of health with only Seb Hines missing.
Central defender Hines underwent knee surgery during the summer and is expected to sit out the first month of the campaign.
- Seb Hines