Buffalo Bills right tackle Seantrel Henderson was been suspended by the NFL for the first four games of the season for violating the league's substance abuse policy. The Bills announced the suspension Friday, and Henderson's agent, Brian Fettner, told The Associated Press his client has dropped his plans to appeal the ruling. In revealing Henderson tested positive for marijuana, Fettner called it ''futile'' to launch an appeal, even though he said his client was using the drug for medicinal purposes to relieve the effects of Crohn's disease. More...