Vikings center John Sullivan has played in 57 consecutive NFL regular-season games. Coach Mike Zimmer doesn't seem too concerned about the streak possibly ending.
Sullivan sat out practice Monday with back spasms and hasn't practiced since Aug. 18. Still, Zimmer claimed he isn't worried.
"Not really," Zimmer said. "He's getting better every day. We might get him out here a little (Tuesday). We'll see."
Zimmer wouldn't speculate on Sullivan's chances of playing in next Monday's regular-season opener at San Francisco, saying, "We'll see how he improves." Zimmer did say he's "encouraged" by the center's recovery process.