2018 Photos: Running Backs

Detroit Lions running back Kerryon Johnson (33) during a NFL football game against the New England Patriots on Sunday, Sept. 23, 2018 in Detroit. (Detroit Lions via AP).

Detroit Lions running back Kerryon Johnson (33) during a NFL football game against the Carolina Panthers on Sunday, Nov. 18, 2018 in Detroit. (Detroit Lions via AP).

Detroit Lions running back Theo Riddick (25) runs after a catch during a NFL football game against the Dallas Cowboys on Sunday, Sept. 30, 2018 in Arlington, Texas. (Detroit Lions via AP).

Detroit Lions running back Theo Riddick (25) during a NFL football game against the Los Angeles Rams on Sunday, Dec. 2, 2018 in Detroit. (Detroit Lions via AP).

Detroit Lions running back LeGarrette Blount (29) during a NFL football game against the Los Angeles Rams on Sunday, Dec. 2, 2018 in Detroit. (Detroit Lions via AP).

Detroit Lions running back LeGarrette Blount (29) during a NFL football game against the Green Bay Packers on Sunday, Oct. 7, 2018 in Detroit. (Detroit Lions via AP).

Detroit Lions running back Zach Zenner (34) during a NFL football game against the Arizona Cardinals on Sunday, Dec. 9, 2018 in Glendale, Ariz. (Detroit Lions via AP).

Detroit Lions running back Zach Zenner (34) during a NFL football game against the Minnesota Vikings on Sunday, Dec. 23, 2018 in Detroit. (Detroit Lions via AP).

Detroit Lions fullback Nick Bellore (43) catches a deflected pss on fourth down during a NFL football game against the Chicago Bears on Thursday, Nov. 22, 2018 in Detroit. (Detroit Lions via AP).

Detroit Lions fullback Nick Bellore (43) during a NFL football game against the Minnesota Vikings on Sunday, Dec. 23, 2018 in Detroit. (Detroit Lions via AP).