SANTA CLARA, Calif. — The injury-riddled San Francisco 49ers welcomed two key players back to practice when quarterback Brock Purdy and tight end George Kittle participated on Wednesday on a limited basis.

Purdy has missed the past two games and four of the last five with a toe injury. But he was able to join practice for the first time since reinjuring his toe in a Week 4 loss to Jacksonville.

Mac Jones, who has gone 3-1 as Purdy's replacement, also was limited with injuries to his knee and oblique but was able to do more than Purdy at practice, according to coach Kyle Shanahan.

The Niners (4-2) aren't sure who will start on Sunday night against Atlanta but are hopeful to have Kittle as part of the offense for that game. Kittle injured a hamstring in the season opener and has missed th

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