BOURBONNAIS, Ill. -- A daily review of the hot topics coming out of Chicago Bears training camp:

• While the Bears actively monitor the waiver wire and scan the list of available free-agent wide receivers in the aftermath of Marquess Wilson’s fractured clavicle, Tuesday’s practice allowed the team to try out several different receiver combinations. Minus Wilson and veteran Brandon Marshall (coaches' decision), the Bears trotted out a three-wide receiver set to begin 11-on-11 drills that featured Alshon Jeffery, Eric Weems and Chris Williams. Weems, a former Pro Bowl return man in Atlanta, figures to be a lock to make the team based on his familiarity with the offense and immense value on special teams, but the remaining roster spots are wide open. According to quarterback Jay Cutler: “Eric Weems has had a great camp, but so have a number of other guys. Right now it’s too early to peg anybody. We’ll just see how it plays out.” Cutler later added the Bears expect Wilson back on the field in 2014 after he underwent surgery on Tuesday morning. But with no timetable set for Wilson’s return, the Bears do need to find a reliable option in the slot to bridge the gap over the first couple weeks of the regular season, at the bare minimum.

• Cornerback Isaiah Frey suffered a right hamstring injury at practice and had to be carted back to the locker room. The Bears’ 2013 starting nickelback, Frey is facing an uphill battle to make the team with veterans Charles Tillman, Tim Jennings, Kelvin Hayden and Sherrick McManis, plus rookie first-round draft choice Kyle Fuller ahead of Frey on the depth chart. Frey told reporters he plans to vigorously attack the required rehabilitation program, but stressed the importance of resisting the urge to return too soon from a pulled hamstring injury, since those types of injuries tend to linger.

• Starting right tackle Jordan Mills hurt his foot at the tail end of Tuesday’s practice. Mills stayed and watched the final drill before walking off the field under his own power. Mills suffered a foot injury during pregame warm-ups in last year’s regular-season finale versus the Green Bay Packers that required offseason surgery. The Bears did not reveal the severity of the injury, but Mills seemed to be in good spirits when he arrived at lunch later in the afternoon.

• Adrian Wilson and Ryan Mundy again took first-team reps at safety.

• Jennings (quadriceps) and guard Eben Britton (hamstring) were held out of practice, but linebacker Lance Briggs fully participated after a knee injury kept him off the field for final portion of Monday’s session. Defensive end Jared Allen was excused from another practice due to personal reasons, while running back Shaun Draughn went through an entire practice following a couple of personal days away from the team.

• The Bears' next scheduled practice is Wednesday at 9 a.m. CT.