SANTA CLARA, Calif. (AP) -Left tackle Jonas Jennings will be out of the San Francisco 49ers' lineup indefinitely while dealing with a ``private matter,'' coach Mike Nolan said Thursday.
The oft-injured Jennings is healthy, but Nolan wouldn't disclose the reason for the seventh-year pro's absence. Jennings was at the 49ers' training complex Thursday, but didn't practice.
``As always, our most important interest is in the well-being of our players,'' Nolan said.
Third-year backup Adam Snyder will start in place of Jennings, who started 13 games last season. Jennings played just three games in his first campaign with San Francisco in 2005, missing most of the year with a shoulder injury.
Jennings' absence is another blow to the 49ers' already struggling offense, which is last in the NFL in total yards. Quarterback Alex Smith will miss Sunday's game against Baltimore with a shoulder injury, while tight end Vernon Davis will be out at least one more game with a knee injury.
San Francisco has a bye week after facing the Ravens, but Nolan wasn't certain Jennings would be back for the 49ers' road game against the New York Giants on Oct. 21.

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