ALLEN PARK, Mich. -- The "Next Man Up" theory runs throughout the NFL.
Injuries are inevitable and someone has to come in to fill those roles to keep a team from falling back.
The Detroit Lions have been weakened at safety because of Louis Delmas' knee surgery and Amari Spievey's on-again, off-again headaches.
John Wendling, known for his strong special-teams play during his five-year NFL career, is one of those players trying to prove he can take on a bigger role if needed.
Wendling has started both of the Lions' preseason games. In Friday's 27-12 victory at Baltimore, he stopped one drive by breaking up a pass deep in Detroit territory and then forced a punt another time with a sack.
He's not flashy by any means, but he's dependable.
It's substance over style.
"John's a solid pro," coach Jim Schwartz said. "He's always in the right spots. He does a good job of executing the scheme. He does a good job of communicating. He's a very good tackler. Probably more so this year, he...