New England Patriots cornerback Alfonzo Dennard joined teammates at practice for the first time on Tuesday after opening camp on the active/physically-unable-to-perform list following offseason shoulder surgery. Dennard’s presence highlights the solid depth the Patriots have at the position, with Darrelle Revis, Brandon Browner, Kyle Arrington (slot), Logan Ryan and Dennard the top players. The Patriots will be without Browner for the first four games of the season due to NFL suspension. Dennard, who has started 20 games (including playoffs) in his first two NFL seasons, is a top candidate to fill that void, as is Ryan, who started seven games last season and led the team with five interceptions. Dennard’s on-field presence was the most notable news item from Patriots headquarters on Tuesday morning, as coach Bill Belichick held a news conference before practice.