They later announced Josh Harris, an undrafted rookie out of Wake Forest, has been promoted from the practice squad to replace Blount on the roster.
According to an earlier report, Blount had left the field before Monday night's game had ended, and, according to the Pittsburgh Post-Gazette, "at least one player thought they should leave him in Nashville."
The Steelers beat the Tennessee Titans, 27-24, thanks to 204 yards rushing by Le'Veon Bell. But in spite of the performance, it was reported that Blount -- who was with Bell when the second-year runner was arrested for driving under the influence of marijuana during preseason -- had been "dragging down" Bell.
Blount didn't have a carry or a kickoff return against the Titans, but did appear in the game, albeit briefly.
Blount finished his Steelers career with 266 yards rushing on 65 carries to rank second on the team in both categories behind Bell. But Blount was also coming off of his poorest game of the season. Against the New York Jets, Blount carried five times for no yardage.
The previous week against the Baltimore Ravens, Blount carried 10 times for 23 yards.
In Week 3, Blount rushed 10 times for 118 yards in the Steelers' win over the Carolina Panthers, but his production began to tail off significantly.
Blount, of course, has been troubled since his collegiate days at Oregon. He had been suspended twice prior to slugging a Boise State player in the opener, which drew a season-long suspension in 2009.
In the NFL, Blount has played for four teams in five years. His first team was the Titans, who cut him a few days after he had made the roster out of training camp.
This was Blount's only season with the Steelers after signing a two-year, $3.85 million contract last spring.