Required Reading: Links to the Best in AFC North Coverage, 8/8 Edition

Today's AFC North Required Reading includes reports on four young players starting on the offensive line for two different teams in their respective first preseason games, a breakdown of the Bengals' first depth chart of the season and an unsettling development for Browns running back Trent Richardson.

Baltimore Ravens

With Baltimore Ravens starting center Matt Birk out of Thursday's preseason game against the Atlanta Falcons with back spasms, two young players will be filling in, says Edward Lee of the Baltimore Sun. Rookie Gino Gradkowski and second-year center Justin Boren will be seeing time on the field in Birk's stead.

Bleacher Report's Mike Fast breaks down Tuesday's Ravens training camp practices.

Cincinnati Bengals

Brandon Tate was listed as the Cincinnati Bengals' starting wide receiver opposite A.J. Green in Tuesday's first released depth chart, but as the Cincinnati Enquirer's Kevin Kelly reports, Tate knows that the competition for the job is just heating up as the preseason schedule is about to start.

Matt Gray of Bleacher Report looks at the Bengals' depth chart and gives us his first impressions of the roster.

Cleveland Browns

Cleveland Browns running back Trent Richardson sat out of practice yesterday with soreness in his left knee, on which he had surgery in February. According to Mary Kay Cabot of the Cleveland Plain Dealer, Richardson will undergo an MRI and may not play in Friday's preseason opener against the Detroit Lions. 

Bleacher Report's Todd Edwards breaks down what we've learned about Browns quarterback Brandon Weeden based on his performance in training camp thus far.

Pittsburgh Steelers

The Pittsburgh Steelers will be wasting no time in seeing how their rookie offensive linemen, David DeCastro and Mike Adams, have handled the transition to the NFL. Gerry Dulac of the Pittsburgh Post-Gazette reports both will be starting in the team's first preseason game, which is scheduled for Thursday against the Philadelphia Eagles. 

Alen Dumonjic of Bleacher Report breaks down what makes Steelers holdout wide receiver Mike Wallace such a special player and why that means the team must do whatever it takes to keep him on their roster.

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