50 Anthony Walker LB

Walker (groin) will miss at least a couple weeks of practice, Mike Chappell of IndySportsCentral.com reports.

Walker, who left Sunday's practice early due to a groin injury, will be sidelined until mid-August due to the issue. Skai Moore figures to see additional reps with the first-team defense as a result of Walker's injury.

Walker (concussion) exited Sunday's practice early due to a groin injury, Mike Chappell of CBS 4 Indianapolis reports.

The good news is that Walker appears fully recovered from a concussion suffered in June. That being said, if Walker, who has been working with the first-team at middle linebacker thus far at training camp, is out for an extended period of time, it could spell trouble for an already-thin Colts linebackers corps. The severity of the injury is not yet known, so there will be hope that it is simply a tweak. As long as Walker is out, expect Darius Leonard to see additional reps with the first-team defense.

Walker is in concussion protocol after being carted off the practice field Wednesday, Mike Chappell of Fox 59 News Indianapolis reports.

After being carted off following some incidental contact in practice Wednesday, Walker has officially been diagnosed with a concussion. He'll need to be clear of all concussion-related symptoms before being able to return to the practice field, but the Colts will likely be overly cautious with Walker given that training camp is still over a month away.

Walker was carted off the practice field Wednesday with an undisclosed injury, Mike Wells of ESPN reports.

The exact location and severity of the injury are unclear, though Walker appeared to suffer the injury while providing run support during a drill. The fact that he was carted off is obviously concerning, but more information should be provided after he undergoes additional testing over the next few hours.

Walker totaled 22 tackles (11 solo) across 10 games with the Colts in 2017.

Walker was active for only two games in the first half of the season but managed to earn a pair of starts to finish the year. The rookie fifth-round pick had 19 tackles over the final three weeks of the season, and could have a chance to earn an increased role in 2018 with starting linebacker Jon Bostic headed for free agency.