AFC North notes: McKinnie returns

Here are some afternoon notes from training camps in the AFC North ...

RAVENS: Offensive tackle Bryant McKinnie made his training camp debut Friday, participating in the second full-team practice, according to the team's official website. This comes one day after being held out by coach John Harbaugh for being "too heavy."

BENGALS: Wide receiver A.J. Green insisted he won't play more cautious in training camp after bruising his left knee on the first practice, and coach Marvin Lewis seems fine with it. "He made one catch this spring that was the most incredible catch I've ever seen," Lewis said, via the team's official website. "He stretched out for the ball, put his left hand down, rolled, came up on his feet and he was parallel to the ground about a foot above the ground. He's kind of put together that way."

STEELERS: Defensive end Brett Keisel made another attention-grabbing entrance to training camp, driving a dump truck to St. Vincent College. This time, Keisel came with a message. According to the Pittsburgh Post-Gazette, Keisel explained that training camp would be a construction site as the Steelers work to get back into the playoffs after last year's 8-8 season.

BROWNS: Defensive tackle Phil Taylor missed Friday's practice with a calf strain, according to The Plain Dealer. Wide receiver David Nelson is practicing for the first time since his ACL surgery last year. Nelson suffered a season-ending knee injury in Week 1 last season with the Buffalo Bills and didn't practice in any offseason workouts after signing with the Browns in free agency. He is expected to compete for Cleveland's No. 4 wide receiver spot.