Buffalo Bills quarterback Kevin Kolb injured his left knee on Saturday when he slipped while running from one field to another at training camp.
The injury is not considered serious and Kolb is expected to return to practice in a few days. He is competing with rookie EJ Manuel for the starting job.
Kolb slipped on a wet rubber mat while running between fields. He did not fall but stumbled and had to put him arm around trainer Bud Carpenter's shoulder as he had trouble standing. He was taken to the locker room after being examined by Carpenter.
The Bills also announced the signing of rookie wide receiver Terrell Sinkfield, who wowed scouts when he ran the 40-yard dash in 4.19 seconds at University of Minnesota's Pro Day.
---Patrick Peterson, the Arizona Cardinals' Pro Bowl cornerback and punt returner, could get some snaps at wide receiver this year.
Cardinals first-year coach Bruce Arians said Peterson is too talented to not be used on offense. Peterson also likes the idea.
"I'm pretty dynamic with the ball in my hands," Peterson said. "I'm not saying the offense needs help. They have great talent over there. But I guess (Arians) just wanted more explosive plays from guys that could help."
---Tight end Leonard Pope signed a one-year deal with the Chicago Bears, who waived tight end Brody Eldridge.
Pope, 6-8, 264 pounds, has played in 103 career NFL games with 51 starts over seven seasons with the Arizona Cardinals (2006-08), Kansas City Chiefs (2009-11) and Pittsburgh Steelers (2012). Known primarily for his blocking, Pope has 105 career receptions for 982 yards and 11 touchdowns. He appeared in all 16 games for the Steelers last season, catching three passes for nine yards, including two touchdowns.
---The Kansas City Chiefs signed veteran guard Rokevious Watkins on Saturday, according to multiple reports.
Watkins, at 6 feet 3, 338 pounds, was recently cut by the St. Louis Rams after reporting to training camp overweight. Watkins a fifth round draft pick in 2012 out of South Carolina, played in just one game as a rookie because of an ankle injury.
The Chiefs cut 6-foot-6, 354-pound offensive tackle Mike Tepper to make room for Watkins on the roster. Tepper has played for the Indianapolis Colts and the Dallas Cowboys.
---The Cleveland Browns announced Saturday that they re-signed free agent offensive lineman Dominic Alford.
Alford was originally signed by Cleveland as an undrafted free agent in 2011 and was on the team's practice squad all season. He spent the final four weeks of last season on the Carolina Panthers' practice squad.
---The Pittsburgh Steelers signed offensive lineman D'Anthony Batiste to a one-year contract, the team announced Saturday.
Batiste, 31, played in 12 games for the Arizona Cardinals last year, including 10 starts.
The Steelers placed rookie guard Nik Embernate on the waived/injured list to make room for Batiste on the roster. Embernate is recovering from a torn ACL and MCL.