The San Francisco 49ers will roll out a fourth different starting running back Sunday when they visit the Miami Dolphins.

Rookie fourth-round pick Isaac Guerendo had been pushed into the starting role when RBs Christian McCaffrey and Jordan Mason both suffered injuries in a Week 13 loss to the Buffalo Bills. Now Guerendo is dealing with a hamstring injury that forced him out of the 49ers’ Week 16 game in Miami.

With the rookie also on the sideline, the 49ers are ‘most likely’ turning to fourth-year veteran Patrick Taylor according to head coach Kyle Shanahan.

Shanahan on Friday told reporters Taylor’s experience with the club and his performance as a special teams contributor earned him the starting job.

“Yeah. He’s been here since training camp,” Shanahan said. “He’s done a real good job for us, played in this league before, has experience there at Green Bay and when he’s gotten his opportunities with us he’s ran the ball well. And when he hasn’t run the ball, he’s really helped us on special teams. So, big opportunity for him and glad we’ve got him.”

Taylor was on the active roster to begin the year while McCaffrey worked through an Achilles injury. He became expendable once McCaffrey returned and the 49ers released him before re-signing him to their practice squad.

This season Taylor has played in 10 games and notched 50 rushing yards and one touchdown on 14 carries. He might eclipse those season totals Sunday with unreliable depth behind him.

Ke’Shawn Vaughn will likely be up from the practice squad, but he’s primarily been a special teams contributor and has two separate practice squad stints after spending part of the preseason with San Francisco.

Israel Abanikanda is also on the roster after the 49ers claimed him off waivers from the Jets. He’s only been with the team three weeks and hasn’t been able to get on the field.

While the 49ers may rotate in other RBs more than they would have with a player higher on the depth chart starting, chances are Taylor will see a lion’s share of the rushing and receiving workload with a chance to eclipse his season totals in one game.