Morning links: Ryan Mathews on fumbling

Good morning. Steve Hartman and Mike Costa of XTRA 1360 Fox Sports San Diego talked with San Diego Chargers running back Ryan Mathews in this audio link.

Mathews talked about his fumble at the goal line in San Diego’s exhibition opener against the Dallas Cowboys.

“The guy made a good play. He put his helmet right on the ball and it popped out,” Mathews said. “I’ve done what I’ve had to do to help myself in the long run of taking care of the ball. And like I said, it’s like another practice game in breaking off all of the rust.

“You go back and you watch film, and you see little cuts where last year I was making cuts and the ball wasn’t away from my body. And then coming into this preseason game where you’re making cuts and the ball is away from my body. So you see stuff like that, you start to prepare yourself for the games that really count, and all you have to do is fix it.”

Mathews also addressed how he’s dealing with playing in a contract year.

“The main goal is to do whatever I can to help the team and to just be able to produce when I’m out on the field,” Mathews said. “When I’m out on the field, if I’m touching the ball being able to put yards down when I’m running or catching it, or put up a good block.”

In this ESPN Insider piece, ESPN NFL Insider Mark Dominik assembles his ultimate 53-man roster under the 2014 salary cap. No San Diego player makes the cut.

Michael Gehlken of U-T San Diego writes that cornerback Brandon Flowers could be an option for San Diego as a slot defender.

Hayley Elwood of Chargers.com talks with Shareece Wright, who says San Diego’s secondary is improved.

Chris Wesseling of NFL.com ranks Kellen Clemens the No. 26 backup quarterback in the NFL. Charlie Whitehurst is No. 28.

According to a social media study performed by digital marketing agency Prime Visibility measuring fan confidence, Chargers’ fans have the second-most confidence in their team, trailing only the Seahawks.

Robert Mays of Grantland has a good read on former Saints Pro Bowl center LeCharles Bentley, who created a business in Arizona focused on training NFL linemen.