‘The Bills’ most critical injury, however, may have been the torn Achilles tendon suffered by middle linebacker Sam Cowart in the opener. Cowart, who made the Pro Bowl after making 181 tackles in only 12 games last season, was expected to be the lynchpin for Williams’ new 4-3 defense. He was replaced last week by rookie Brandon Spoon on running downs and by Kenyatta Wright on passing downs. Spoon was injured in the game and will join Cowart on the sidelines today. "I’m not crying that he’s not playing," said Steelers running back Jerome Bettis. "I never wish injury on a player. I just hope he recovers 100 percent from it. But he’s one of those guys where you kind of give a sigh of relief when you hear he’s not playing."’