Has Trent Richardson finally been phased out of the Colts’ offense?

Trent Richardson played one snap in Sunday's playoff game against the Cincinnati Bengals.

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The Indianapolis Colts may have finally phased out running back Trent Richardson from their offense.

Richardson, who didn’t participate in practice all week because he was dealing with an illness, was active for Sunday’s game against the Cincinnati Bengals. The third-year running back, though, didn’t log his first snap in the AFC wild-card matchup until the fourth quarter. It was his only play of the game.

Richardson’s second year in Indianapolis after an early-season 2013 trade from Cleveland hasn’t been much better than his first — he averaged a paltry 3.3 yards a carry on 159 attempts.

Dan Herron, a sixth-round pick in the 2012 NFL Draft, has assumed the lion’s share of the carries in the six weeks since Ahmad Bradshaw went down with a fractured fibula. Herron finished Saturday’s game with 12 carries for 56 yards and a touchdown, and he was a Andrew Luck’s favorite checkdown option with 10 receptions for 85 yards on 11 targets.

Working in tandem with Herron was undrafted free-agent rookie Zurlon Tipton, who had 11 carries for 40 yards.

The Colts, of course, traded a first-round pick to the Browns for Richardson, the No. 3 overall pick in the 2012 draft. Though that pick was used to draft quarterback Johnny Manziel, Richardson’s career might be in worse shape than Johnny Football’s.

After the game, head coach Chuck Pagano addressed the issue and said he held Richardson out because of the illness and expects him to play in Denver next weekend, according to Colts.com’s Kevin Bowen.