The Chicago Bears are reportedly looking to upgrade their running back position.

According to Brad Biggs of the Chicago Tribune, Chicago brought in running backs James Summers, Jahad Thomas and Stanley Williams in for a workout on Tuesday. The Bears currently sit with three running backs on their roster in Jordan Howard, Tarik Cohen and Taquan Mizzell.

Summers spent his collegiate career at East Carolina and led the Pirates with 869 rushing yards with seven touchdowns last season. The 210-pound back also caught 19 passes for 109 yards with a touchdown. He spent part of this offseason with the Arizona Cardinals, rushing for 95 yards on 30 carries with one touchdown during the preseason.

Thomas spent his collegiate career with Temple, signing with the Dallas Cowboys as an undrafted free agent this offseason. In his final year at Temple he rushed for 953 yards. He was waived by Dallas in late July and spent training camp with the New York Jets. He spent time on the team's practice squad before he was released last month.

In Williams' final season at Kentucky in 2016 he rushed for 1,170 yards on 171 carries and scored seven touchdowns. 5'7" he is small for the position but he provided to be electric with the ball in his hands in college. He signed with the Cincinnati Bengals after the draft before he signed with the Denver Broncos on August 20. He rushed for just 16 yards on eight carries during the preseason.

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The Bears have not announced whether or not they have signed any of the backs they brought in on Monday.