PITTSFORD, N.Y. -- The Buffalo Bills were back on the practice field Wednesday morning, holding their second full-padded session of training camp.
Passing along some observations:
Williams back, but does not participate: Defensive end Mario Williams was back in uniform after leaving training camp to have his sore foot evaluated. Williams worked with the strength and conditioning staff on the sidelines, and did not participate in practice. Meanwhile, tight end Scott Chandler (ACL) and defensive lineman Kyle Williams (Achilles) continued to be held out of team drills. Head coach Doug Marrone said the team has built in rest days for Chandler, who had knee surgery in January.
Rogers sits out; McKelvin gets bumped up: Cornerback Justin Rogers was not in uniform on Wednesday after suffering a right hamstring injury in Tuesday's session. Marrone said after practice that Rogers will be out "for a short period of time." Rogers began training camp with the first team and was replaced by T.J. Heath on Tuesday. However, veteran Leodis McKelvin ran with the first team on Wednesday, with Heath and Crezdon Butler playing cornerback for the second group.
"He made a heck of a play on a comeback [pattern]," Marrone said of McKelvin after practice. "When you're out for that long, it takes some time. He's really coming along nicely. We're excited about that."
Elliott carted off: Second-year receiver Kevin Elliott was carted off the practice field with a right shoulder injury. Elliott made an impressive diving catch during 11-on-11s against top cornerback Stephon Gilmore, but came down hard on his shoulder and looked to be in pain on the sideline. Elliott is the mix for a back-end roster spot.
Other injuries: Marrone said a pair of running backs were hobbled with ankle injuries on Wednesday. Veteran Tashard Choice came up slow during a punt drill and talked to trainers, but later came back onto the field for 11-on-11 work. Meanwhile, Zach Brown suffered an ankle injury that Marrone said doctors will examine.
Manuel gets first-team action: Rookie quarterback EJ Manuel ran the first-team offense during the initial 11-on-11 period of practice after spending most of his time with the second team to begin training camp. Veteran Kevin Kolb led the top group for the final two 11-on-11 periods. For the second consecutive practice, Manuel avoided making any critical mistakes while in the pocket, but looked to face more blitz pressures than he has in previous sessions.
Kolb was intercepted during an early 7-on-7 drill by Gilmore, who undercut rookie running back Kendall Gaskins on a short pattern. Kolb was later intercepted by safety Da'Norris Searcy on a pass intended for rookie receiver Marquise Goodwin, and also had some throws that sailed behind receivers T.J. Graham and Robert Woods. On the plus side, it was Kolb who lofted a well-thrown ball to Elliott on the play where he was injured.
Dime package gets work: The Bills had six defensive backs on the field for a stretch of their final 11-on-11 period. Safety Duke Williams was one of the players coming on, with Bryan Scott replacing Nigel Bradham at linebacker. Along the defensive line, Manny Lawson and Alex Carrington provided the pass rush. On the second unit, rookie Nickell Robey manned the slot, intercepting quarterback Jeff Tuel late in the period.
Punters look even: The punt unit returned to action Wednesday, with Shawn Powell and Brian Stahovich both impressive during both special-teams periods. However, returners had issues during the first period, with Woods and Graham both muffing catches, drawing the ire of special-teams coordinator Danny Crossman.
Good day at the office for: McKelvin. The changes at cornerback continue for the Bills, and McKelvin was the latest to take reps with the first team. He didn't disappoint, showing tight coverage and breaking up a throw from Kolb to Woods during 11-on-11s.
Bad day at the office for: Kolb. It's tough to compare him side-by-side to Manuel since Kolb is usually seeing the best unit from the defense, but Kolb continues to struggle at times with his accuracy and decision making. He's in the spotlight given the quarterback situation, so his mistakes are more magnified than those of other players.
What's next: Players are off Thursday before returning to practice Friday morning from 8 to 11:10.