He was released on Tuesday, the team announced.
Blount - who signed a two-year, $3.9-million contract last spring - has seen his role in the offense steadily diminish in recent weeks. On Monday night he didn't get a single carry, which reportedly led to his walk-off.
From Bouchette:
"He dressed and left the locker room, apparently headed for the team bus that would take them to the airport. At least one player thought they should leave him in Nashville.
"Blount has been an internal problem for at least a month for the Steelers and sources told the Pittsburgh Post-Gazette that he is dragging down star halfback Le'Veon Bell, even though that obviously was not the case Monday night when Bell ran 33 times for 204 yards."
According to TribLive.com, assistant coach Joey Porter was able to stop Blount and get him back to the locker room before he got onto the bus.
The Steelers won 27-24.
After the game ESPN sent cameras into the Steelers locker room. Blount was fully dressed by the time the team came in after the game (via ESPN):
ESPN
Blount spent three years in Tampa Bay before reviving his career with a solid season in New England in 2013. The Patriots let him walk after last season, and he landed with Pittsburgh. Instead of being part of a two-headed rushing attack on the Steelers, Le'Veon Bell has blossomed into a star player and eaten up most of the carries. Blount has five carries for 0 yards in his last two games, including last night 0 carries for 0 yards performance in Nashville.
According to ESPN the Steelers will only take a small, $475,000 cap hit in 2015.