Nolan frustrated with Jennings’ lack of playing

The San Francisco 49ers have announced the following roster moves ahead of their game on Sunday against the New England Patriots. RB Raheem Mostert has been placed on injured reserve S Johnathan Cyprien and S Jared Mayden have been activated from the practice squad WR Jauan Jennings has been placed on the practice squad injured reserve list Mostert suffered a high-ankle sprain during last weekend's win over the Los Angeles Rams. It is unknown what injury Jennings sustained. Cyprien and Mayden being activated was not unexpected. The 49ers will be without both of their starting safeties, Jaquiski Tartt and Jimmie Ward, on Sunday. The following rundown has been provided by the 49ers Communications

San Francisco 49ers tight end George Kittle joined The Rich Eisen Show on Monday. Here are four 49ers-related topics he discussed during the phone interview as his team prepares to face the New England Patriots on Sunday. Kittle on the Deion Sanders-style into-the-end-zone celebration (pictured above) against the Los Angeles Rams "We were in the throwbacks. Got to pay a little respect. … Just had a little bit of fun, man. It's something about those all-white throwbacks. They get you all excited." Kittle on the offense starting to gel "I think there's still a lot of mistakes for us to correct, but our overall confidence as an offensive unit, like playing together, 11 guys working towards