Eagles linebacker Jake Knott was suspended for the first four games of the season for violating the NFL policy on performance-enhancing substances. Knott released this statement:
"Several weeks ago, I was shocked to learn that I tested positive for a stimulant that is banned by the NFL. I have never knowingly ingested a banned substance, but like most players, I take nutritional supplements. Unfortunately, I now know that supplements are not regulated and thus may contain things that are not listed on the label. The NFL policy is very strict, so I have chosen to take immediate responsibility. I look forward to participating in team workouts, training camp and the preseason with my team."
Cardinals linebacker Daryl Washington has been suspended for the entire 2014 season for violating the league's substance-abuse policy. He was suspended four games last season for violating the same policy.
The Cardinals placed safety Tyrann Mathieu and nose tackle Alameda Ta'amu on the PUP list with knee injuries and released receiver Kelsey Pope. Arizona anticipates Mathieu and Ta'amu returning for its Week 5 game at Denver.