The Chicago Bears' starting offense produced mixed results in Thursday's joint practice against the Cincinnati Bengals. 

You can read all about that here on Roundtable Sports.

[READ: Bears-Bengals Practice Takeaways: Up & Down for Ben Johnson's Offense] 

Will Thursday's performance force Bears head coach Ben Johnson to play quarterback Caleb Williams and the first-team offense in preseason game No. 2? We'll have to wait and find out. 

To avoid putting a spotlight on any of the starters who may not play in the game, here are five backups to watch in Saturday's game against the Bengals. 

The veteran running back made the most of his opportunities in the 34-10 win over the Browns in last Saturday's preseason game, finishing with two rushes for 17 yards and three receptions for 55 yards, including a 49-yard touchdown. 

Ahmed also showed off his speed, outrunning some Bengals defenders during a rep in the 11-on-11 period on Thursday. It's between Ahmed and Roschon Johnson for the third running back spot on the roster behind D'Andre Swift and Kyle Monangai. 

Saturday's game against the Bengals should provide another opportunity to create some separation in the competition. 

It will be tough for the 26-year-old defensive back to top his performance against the Browns after he secured two interceptions. Both those turnovers were overthrows and essentially handed to Bishop. 

I'm curious to see what he looks like more in coverage and how he can battle receivers on the outside or if he gets more opportunities at nickel, a position that is still missing starter Kyler Gordon. 

The Bengals have playmakers all over their offense, so it will be a good challenge for the second-year player.

The box score won't tell you everything about Lynch's preseason performance against the Browns. He finished with two total tackles, one quarterback hit and a pass breakup. The 6-foot-4, 295-pound defensive lineman showed versatility, lining up between a 3 and 5 technique. He also finished with a 75.9 Pro Football Focus grade, the fifth-highest on the Bears' defense. 

The Bears need players who they can count on when starters need a break. Lynch can earn that role if he continues to stack productive games and practices throughout the summer. 

The Bears' rookie tight end had some up-and-down moments in Thursday's joint practice. Early in the team period, Roush made a nice block along the left edge, helping spring D'Andre Swift free for an explosive run. 

When Roush lined up with the second-team offense, he ran a short route to the flat. Quarterback Case Keenum threw the ball directly into the tight end's hands, but he dropped it. One Bengals defender started mocking him, yelling, "Same, Sam, Sam."

I want to see Roush get some pass-catching opportunities. Allow him to run downfield and create separation. If the rookie can become a multidimensional player, that only increases the ways Johnson can use him on game days. 

In last Tuesday's training camp practice at Halas Hall, Johnson switched up the rotation at left tackle, giving Benedet a shot for the first-team defense. In that practice, he held his own. 

That wasn't the case against the Bengals. Williams was under consistent pressure all practice and a lot came off the quarterback's blindside. 

That same Tuesday that Johnson switched up the left tackle rotation, he also said "the competition remains wide open." I don't believe Benedet will be the team's Week 1 starting left tackle, but he should win the job as the swing tackle. He has some ground to make up after Thursday's joint practice.