WR Titus Young’s alleged punching of teammate Louis Delmas is the latest in a string of discipline-related incidents that have given the Lions a national reputation as a dirty team. WR Nate Burleson said he disagrees with criticism of Detroit’s on-field actions, but he admitted Tuesday that the team must learn to toe the line between aggressive and excessive physical play. “I think we at times have to dial down our emotion,” he said. “Whether it’s during the season, during workouts, during OTAs, we’ve just got to know how to channel our energy in the right direction and utilize it for our benefit."