Buffalo Bills on the mend:

Whether the Buffalo Bills decide to go with Matt Cassel, Tyrod Taylor or E.J. Manuel as their starting quarterback, they will have some new weapons to play with. The offseason saw the Bills add running back LeSean McCoy, wide receiver Percy Harvin and tight end Charles Clay.

Unfortunately, as the Bills get ready to play their second preseason game against the Cleveland Browns Thursday night, several of the Bills skill position players, including McCoy and Harvin are on the mend with injuries.

McCoy will undergo an MRI on his hamstring after tweaking it in practice on Tuesday. McCoy is just the latest running back to go down, as Fred Jackson has missed all of camp with a hamstring issue of his own, and rookie tailback Karlos Williams is also on the shelf after having an unknown procedure.

Williams woke up in a lot of pain Monday morning, according to Bills head coach Rex Ryan. Williams led the Bills with 14 carries in their preseason opener Friday night.

Unbelievably, Bills backs Bryce Brown and Boobie Dixon are also out with hamstring and calf issues respectively, leaving Bronson Hill and Ricky Seale as the only healthy backs for the Buffalo heading into Thursday night.

The issues don’t stop with the tailback position, as oft injured Percy Harvin is dealing with hip pain. Harvin received a platelet-rich plasma injection with hopes that it will help him get back onto the field more quickly. If this is anything like Harvin’s issues in the past, expect this to keep him out longer than originally planned. For all of Harvin’s ability, his fragility makes him a difficult guy to rely on.

Jets sign quarterback Matt Flynn:

After the New York Jets lost starting quarterback Geno Smith to a broken jaw, the starting quarterback nod went to veteran Ryan Fitzpatrick. New Jets offensive coordinator Chan Gailey is either very comfortable with Fitzpatrick at quarterback, or was scared to death to lose Fitzpatrick to injury as the veteran quarterback only attempted three passes before handing off the quarterback duties to rookie Bryce Petty in the Jets’ preseason opener.

When Petty did take the reins at quarterback, his physical tools were evident, as was his inability to figure out an NFL defense. Petty finished 10-18, for just 50 yards, and made it quite clear that the Jets would need to look for depth behind Fitzpatrick if they hoped to remain competitive in 2015. Petty may someday be the Jets starting quarterback, but it probably shouldn’t be 2015, and it definitely shouldn’t be early in the season.

The Jets addressed the issue Tuesday, as the team will bring in one of the richest men to ever start less than 10 games at quarterback, Matt Flynn.

Neither Flynn nor Fitzpatrick will strike fear into an opposing defense, but Geno Smith wouldn’t have either. If the Jets are going to be any good this season, it’s going to be because they find a way to pound the rock with Chris Ivory, Bilal Powell and Zac Stacy.

The Jets defense should be a Top-10 unit, and could end up being a Top-5 “D” by the end of the season. If the Jets can get a strong running game and the defense plays to its potential, they’ll just need the quarterback to not screw it up. Can either Fitzpatrick or Flynn not screw it up? That will be this team’s biggest question this season.

Bruce Arians says Chris Johnson isn’t promised anything:

The Arizona Cardinals brought in veteran running back Chris Johnson Monday, and head coach Bruce Arians wouldn’t rule out Johnson earning the starting running back role over incumbent Andre Ellington.

While Arians won’t rule out Johnson in the starting role, he was clear that nothing was promised to the veteran back.

“We don’t promise anything when we bring guys in,” the Cardinals head coach said.

For his part, Johnson is saying all the right things. He sounds like a guy who’s just happy to be playing football after a rough year that included being shot in a drive by.

“I don’t say (I have) something to prove to somebody, I say something to prove to myself,” Johnson said Tuesday, prior to his first practice with the team. “With everything I went through, I’m just happy to be back playing football on Sundays.”

Arians compared Johnson and Ellington, who will both likely play key roles in the Cardinals offense. Arians is excited about Johnson’s big play ability, and it sounds like he’s ready to give Johnson plenty of opportunities to show that he can still be an explosive playmaker.

“He’s a home run every time he touches the ball, Arians said. “He’s one of those guys who make you hold your breath.”

It’s been a couple years since Johnson has been one of the league’s top backs, and it’s unlikely he’s going to see the kind of success he did early in his career ever again, but he doesn’t have to in Arizona. If Johnson can find enough in the tank to be an effective 1-2 punch with Ellington, he’s got a shot to be productive in the final years of his career.