The Browns began their practice week Wednesday in preparation for the Cincinnati Bengals without two key defenders: rookie defensive end Myles Garrett and strongside linebacker Jamie Collins.

Garrett has missed the first three games this season with a right high-ankle sprain he suffered Sept. 6, and Collins sat out Sunday against the Indianapolis Colts with a concussion he suffered Sept. 17 against the Baltimore Ravens.

Garrett spent the half-hour portion of Wednesday's practice open to reporters on a stationary bike. He has been running and doing agility drills since last week.

Collins wasn't on the field during the open portion.

Wide receivers Kenny Britt (unknown) and Sammie Coates (hamstring) and tight end Randall Telfer were on the stationary bikes, too.

Left tackle Joe Thomas didn't practice, either. He wasn't the field, but it's normal for him to take Wednesdays off.