Davis signed with the team in March.
Bell considered returning Monday because the team is off Friday through Sunday but opted to stick with his original plan. He split last season between the Packers and Chiefs and has a lot of kick return experience over four National Football League seasons.
In any case, when he shows up on the field, he'll be paid $12.1 million dollars thanks to the the NFL's franchise-tag option.
However, Bell ultimately made a decision to table discussions because he was seeking a deal that could help reset the running back market.
Le'Veon Bell had made it crystal clear months ago that he wants to be paid like a #1 running back and a #2 WR, but so far the team hasn't budged on his demands.
According to NFL Network's Tom Pelissero, that offer averaged $12 million a season, including a $30 million payout over the first two years of the new deal. The Steelers failed to sign Bell to a long-term deal before the July 17 deadline for franchise-tagged players.
The Steelers rode Bell to the playoffs in 2016. Since he wasn't under contract, he didn't incur any fines for skipping training camp.
Bell rushed for 1,268 yards and seven touchdowns last season, and caught 75 passes for 616 yards and two TDs.