The Buccaneers injury situation went from bad to worse on Monday, as the team placed running back Charles Sims on injured reserve and promoted running back Russell Hansbrough from the practice squad to the active roster.

Sims took over as the starter following Doug Martin’s hamstring injury in Week 2 against the Arizona Cardinals but was largely ineffective as the primary ballcarrier the last two weeks. Sims took a shot to the knee in the 27-7 loss to the Broncos last week and didn’t practice this week, and was listed as doubtful on the team’s final injury report on Saturday.

This is Sims second trip to injured reserve in his three seasons with the Buccaneers after being drafted in the third round in 2014. The former West Virginia standout suffered a foot injury in the preseason as a rookie and missed the first eight games of the 2014 season.

Sims caught 51 passes and totaled 1,090 yards from scrimmage in 2015 as he and Martin formed the NFL’s best running back tandem in the NFL.

The Buccaneers are expected to start former Falcons running back Jacquizz Rodgers against the Panthers on Monday night, with rookie Peyton Barber as the backup.

Hansbrough (5-9, 195) joined Tampa Bay as a college free agent out of Missouri this past offseason. He was with the Buccaneers through the preseason and has spent time on the team’s practice squad this year. He wears No. 44 for the Buccaneers.

Hansbrough, a native of Arlington, Texas, played in 48 games at Missouri (2012-15), starting 14, rushing 467 times for 2,344 yards and 15 touchdowns. His 2,344 rushing yards are the 10th-most in school history.

Sims has played in four games for Tampa Bay this season, starting two. He has rushed 41 times for 116 yards, with one touchdown, while catching 14 passes for 112 yards and one touchdown.