With 7 days until the start of training camp I would like to get a little historical. The history of the Detroit Lions and their Hall of Fame quarterback Earl “Dutch” Clark reveals an interesting tidbit concerning the number 7.According to the Detroit Lions All-Time Roster only one Lion has ever worn the number 7: Dutch Clark. In addition to having the distinction of being worn by only Dutch Clark, 7 is the only number to have appeared on just one player.Clark played for the Lions from 1934-1938 and was the starting quarterback in the Lions very first Thanksgiving Day [...]