San Francisco 49ers' George Kittle misses practice because of groin injury - ESPN
49ers' George Kittle misses practice, status for season opener uncertain
49ers injury report: Kittle, Ward questionable vs. Steelers
49ers vs. Steelers Injury Report: George Kittle, Charvarius Ward questionable for Sunday
49ers vs. Steelers Injury Report: George Kittle, Charvarius Ward questionable for Sunday
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George Kittle Could Miss 49ers Season Opener With a Groin Injury - Sports Illustrated San Francisco 49ers News, Analysis and More
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San Francisco 49ers' George Kittle misses practice because of groin injury - ESPN
49ers playmaker set to miss first four weeks of regular season - A to Z Sports