Williams was rested on Saturday at Hull, with manager Tony Mowbray making three changes for the 4-2 win, but is expected to return in place of German Maxi Haas, who stepped in for his debut.
Striker Justin Hoyte returned to the substitutes' bench against the Tigers following long-term hamstring problems and could make his first appearance since January.
Another striker, Joe Bennett, missed out on Saturday through illness and was replaced by Marvin Emnes, who is expected to retain his place up front alongside hat-trick hero Scott McDonald.
Goalkeeper Jason Steele (torn side muscle), midfielder Jonathan Franks and forward Luke Williams (both ankle) are hoping to return to the squad having recently proved their fitness with the reserves.
Source: PA
Source: PA