In fact, Tomlin said that Brown would be listed as questionable if the team was playing in the wild-card round this weekend.
"His progress is going well," Tomlin said of Brown, who was injured in a 27-24 loss to the New England Patriots on Dec. 17.
Brown has reeled in 101 receptions for an NFL-best 1,533 yards and nine touchdowns in 14 games this season for the Steelers (13-3), who secured the No. 2 seed in the AFC and a first-round bye.
The 29-year-old has 733 catches for 9,910 yards and 59 touchdowns in 115 career games since Pittsburgh selected him in the sixth round of the 2010 draft.