PITTSFORD, N.Y. — Quarterback Kevin Kolb's chances of earning the Buffalo Bills starting job were nearly upended by a wet and slippery rubber mat.
Kolb, who is locked in a competition with rookie first-round pick EJ Manuel, avoided serious injury to his left knee when he slipped and stumbled awkwardly while switching fields between practice drills Saturday.
Coach Doug Marrone said the injury does not appear to be serious. He called it "a bump," and listed Kolb "day by day."
Marrone also provided an update on the status of Stevie Johnson, saying the team's No. 1 receiver will miss at least a week with a pulled left hamstring. Johnson was hurt in practice Friday.
Kolb wasn't available for comment, but showed frustration by angrily tossing his helmet to the ground before being examined by head trainer Bud Carpenter. After a few minutes, Kolb got up got up on his own and was escorted to the locker room.
Kolb was joining the quarterbacks and receivers in making their way through a tunnel to work out on an adjoining field. He slipped on a mat laid down over the concrete, and immediately began hobbling in pain. Kolb then put his arm around Carpenter's shoulder for support.
It was a freak accident that happened about 50 minutes into practice at Bills training camp in suburban Rochester.
When wet, the mats provide very little traction, especially for players wearing cleats. Shortly after Kolb slipped, several camp volunteers arrived with brooms to sweep away any remaining water from the mats.
Manuel took the extra precaution the next time he went through the tunnel by walking mostly on the concrete.
This is but the latest in a series of setbacks for Kolb, who is entering his seventh NFL season and seeking a fresh start in Buffalo after signing a two-year contract in April.
Selected by Philadelphia in the second round of the 2007 draft, Kolb was sidelined by a concussion in losing the Eagles' starting job to Michael Vick to open the 2009 season. Kolb then spent the past two seasons in Arizona, where he failed to secure the starting job because of an assortment of injuries.
Marrone said it's unfair to label Kolb injury-prone.
"The one thing I do know about Kevin is that he is a tough son of a gun," Marrone said. "He'll get back out there quickly if it's up to him."
In the meantime, Manuel will be getting more practice time with the starters. That's a significant step up after Kolb spent much of the first week of camp getting most of the work with the starters.
Marrone had been increasing Manuel's responsibilities over the past week, with the two quarterbacks nearly evenly splitting snaps by Friday. Marrone liked how Manuel responded after Kolb was hurt by not letting the injury affect him or the offense.
"It was a very smooth transition," Marrone said. "It can affect the team. And I didn't see it affect the two guys behind him, so that's positive."
It's too early to determine whether Kolb's injury will affect the quarterback rotation for the Bills preseason opener at Indianapolis on Aug. 11.
Manuel has shown improvement with each day of practice. On Saturday, he hit Marcus Easley on a deep route, and also showed off his speed in taking off on quarterback sweeps.
Manuel was selected 16th overall out of Florida State, and the only quarterback taken in the first round of the draft.
The Bills have only one other quarterback at camp, Jeff Tuel, an undrafted rookie free agent out of Washington State.
As for Stevie Johnson, the receiver was disappointed to be sidelined once again by injury. He missed most of the team's spring practices with a sore back. He's also had a history of groin problems that have cropped up during camp.
Johnson said he felt something pop just as he was pushing off his left leg to make a cut. He expects to be ready for the start of the season.
"The season's where the money's made, man," Johnson said. "I'll be out there to play."
NOTES: With WR Kevin Elliott (right shoulder) also out, the Bills signed undrafted rookie WR Terrell Sinkfield on Saturday. The Northern Iowa product has already been cut twice this offseason, by Miami and Green Bay. ... Reserve TE Mike Caussin, who hurt his hip Friday, will have the injury evaluated next week to determine how much time he'll miss, Marrone said. ... DE Mario Williams took part in on-field individual drills for the first time since complaining of a sore foot before the first training camp practice.
|Cleveland||11/23/14 12:00 PM|
|Tennessee||11/23/14 12:00 PM|
|Detroit||11/23/14 12:00 PM|
|Green Bay||11/23/14 12:00 PM|
|Jacksonville||11/23/14 12:00 PM|
|Cincinnati||11/23/14 12:00 PM|
|Tampa Bay||11/23/14 12:00 PM|
|Arizona||11/23/14 3:05 PM|
|St. Louis||11/23/14 3:05 PM|
|Miami||11/23/14 3:25 PM|
|Washington||11/23/14 3:25 PM|
|Dallas||11/23/14 7:30 PM|
|NY Jets||11/24/14 6:00 PM|
|Baltimore||11/24/14 7:30 PM|
|Chicago||11/27/14 11:30 AM|
|Philadelphia||11/27/14 3:30 PM|
|Seattle||11/27/14 7:30 PM|
|Boston||92||4th Qtr 2:29|
|Cleveland||75||4th Qtr 5:18|
|Brooklyn||90||4th Qtr 5:37|
|San Antonio||107||4th Qtr 4:01|
|LA Lakers||71||3rd Qtr 5:59|
|New Orleans||49||3rd Qtr|
|New Jersey||0||1st Prd :58|
|Coll of Charleston||50|
|Central Conn St||49||FINAL|
|ULM||51||1st OT 3:41|
|Stephen F Austin||63||FINAL|
|North Dakota St||68|
|South Dakota St||74|
|Iona||65||2nd Half 11:04|
|Georgia State||45||2nd Half 13:45|
|Oral Roberts||20||2nd Half|
|UC Riverside||21||2nd Half|
|Idaho State||31||2nd Half|
|Illinois State||44||2nd Half|
|Florida A&M||22||2nd Half 18:07|
|Sam Houston St||30||2nd Half|
|Temple||15||1st Half 5:49|
|Penn State||18||1st Half 6:47|
|Kansas State||9:30 PM|
|Long Beach State|
|(12) Kansas State||26||FINAL|
|Texas-El Paso||3||3rd Qtr 10:34|
|Air Force||0||2nd Qtr|
|San Diego St||10|
|San Jose St||0||1st Qtr 3:49|
|Char Southern||11/22/14 11:00 AM|
|South Alabama||11/22/14 11:00 AM|
|Rutgers||11/22/14 11:00 AM|
|(10) Michigan State|
|Minnesota||11/22/14 11:00 AM|
|Northwestern||11/22/14 11:00 AM|
|(18) Marshall||11/22/14 11:00 AM|
|Kansas||11/22/14 11:00 AM|
|Indiana||11/22/14 11:00 AM|
|(7) Ohio State|
|Penn State||11/22/14 11:00 AM|
|(14) Eastern Ky||11/22/14 11:00 AM|
|TX-San Antonio||11/22/14 11:00 AM|
|SMU||11/22/14 11:00 AM|
|Virginia Tech||11/22/14 11:30 AM|
|Washington St||11/22/14 12:00 PM|
|(13) Arizona State|
|Louisiana Tech||11/22/14 12:00 PM|
|Western Mich||11/22/14 12:00 PM|
|New Mexico||11/22/14 12:30 PM|
|(22) Colorado State|
|Eastern Mich||11/22/14 1:00 PM|
|Appalachian St||11/22/14 1:00 PM|
|Tulsa||11/22/14 2:00 PM|
|(15) Arizona||11/22/14 2:30 PM|
|FIU||11/22/14 2:30 PM|
|(8) Ole Miss||11/22/14 2:30 PM|
|Louisville||11/22/14 2:30 PM|
|Maryland||11/22/14 2:30 PM|
|Texas Tech||11/22/14 2:30 PM|
|(14) Wisconsin||11/22/14 2:30 PM|
|Syracuse||11/22/14 2:30 PM|
|Boston College||11/22/14 2:30 PM|
|(1) Florida State|
|Georgia State||11/22/14 2:30 PM|
|Tulane||11/22/14 2:30 PM|
|Stanford||11/22/14 3:00 PM|
|Western Carolina||11/22/14 3:00 PM|
|ULM||11/22/14 3:00 PM|
|New Mexico St|
|So Florida||11/22/14 3:00 PM|
|Colorado||11/22/14 3:30 PM|
|Fla Atlantic||11/22/14 6:00 PM|
|Samford||11/22/14 6:00 PM|
|Miami-Florida||11/22/14 6:00 PM|
|Vanderbilt||11/22/14 6:30 PM|
|(4) Miss State|
|(19) Missouri||11/22/14 6:30 PM|
|Oklahoma State||11/22/14 6:30 PM|
|(24) USC||11/22/14 7:00 PM|
|Cincinnati||11/22/14 7:00 PM|
|Boise State||11/22/14 9:15 PM|
|Oregon State||11/22/14 9:30 PM|
|Fresno State||11/22/14 9:30 PM|
|UNLV||11/22/14 10:00 PM|
|Ohio U||11/25/14 6:00 PM|
|LSU||11/27/14 6:30 PM|
|(5) TCU||11/27/14 6:30 PM|
|Northern Ill||11/28/14 10:00 AM|
|(21) Nebraska||11/28/14 11:00 AM|
|Western Ky||11/28/14 11:00 AM|
|UCF||11/28/14 11:00 AM|
|Houston||11/28/14 11:00 AM|
|Akron||11/28/14 12:00 PM|
|Ball State||11/28/14 12:00 PM|
|Buffalo||11/28/14 12:00 PM|
|Toledo||11/28/14 12:00 PM|
|Arkansas||11/28/14 1:30 PM|
|Navy||11/28/14 2:00 PM|
|(13) Arizona State||11/28/14 2:30 PM|
|Stanford||11/28/14 2:30 PM|
|(22) Colorado State||11/28/14 2:30 PM|
|Virginia||11/28/14 7:00 PM|
|East Carolina||11/28/14 7:30 PM|
|BYU||11/29/14 2:00 AM|
|(20) Utah||11/29/14 2:00 AM|
|(3) Oregon||11/29/14 2:00 AM|
|Kentucky||11/29/14 2:00 AM|
|Notre Dame||11/29/14 2:00 AM|
|So Carolina||11/29/14 2:00 AM|
|Florida||11/29/14 2:00 AM|
|(1) Florida State|
|Wake Forest||11/29/14 2:00 AM|
|Pittsburgh||11/29/14 2:00 AM|
|Montreal||11/23/14 12:00 PM|
|Edmonton||11/23/14 3:30 PM|
|TBA||11/30/14 5:00 PM|
|Sam Houston St||48|
|(3) Notre Dame||88|
|William & Mary||59||FINAL|
|San Diego State||43||FINAL|
|East Tenn St||79||FINAL|
|Mount St Marys||42||FINAL|
|Long Beach St||85|
|SE Missouri St||56|
|Stephen F Austin||82|
|Massachusetts||44||2nd Half 4:35|
|(24) Gonzaga||59||2nd Half 16:27|
|Boise State||37||2nd Half 17:40|
|Temple||23||1st Half 7:31|
|Missouri||32||1st Half 5:08|
|Cal Poly||2||1st Half 19:31|
|Villanova||0||1st Half 17:58|
|Cal State Fullerton||0|
|(14) California||10:59 PM|
|Aug 8 - vs. Oakland||7 pm||X||10-6|
|Aug 16 - vs. Arizona||7:30 pm||X||30-28|
|Aug 23 - at Kansas City||7 pm||X||30-12|
|Aug 28 - at Tennessee||7 pm||X||19-3|
|2014 regular season|
|Sep 7 - at St. Louis||Noon||X||34-6|
|Sep 14 - vs. New England||Noon||X||30-7|
|Sep 21 - at New Orleans||Noon||X||20-9|
|Sep 28 - vs. Atlanta||3:25 pm||X||41-28|
|Oct 2 - at Green Bay||7:25 pm||X||42-10|
|Oct 12 - vs. Detroit||Noon||X||17-3|
|Oct 19 - at. Buffalo||Noon||X||17-16|
|Oct 26 - at Tampa Bay||Noon||X||19-13 ot|
|Nov 2 - vs. Washington||Noon||X||29-26|
|Nov 9 - Bye|
|Nov 16 - at Chicago||Noon||X||21-13|
|Nov. 23 - vs. Green Bay||Noon|
|Nov. 30 - vs. Carolina||Noon|
|Dec 7 - vs. NY Jets||Noon|
|Dec 14 - at Detroit||Noon|
|Dec 21 - at Miami||Noon|
|Dec 28 - vs. Chicago||Noon|