<div class="at-above-post addthis_tool" data-url="http://www.metro.us/cowboys-49ers-rivalry-set-for-record-tying-9th-playoff-game/"></div>SANTA CLARA, Calif. (AP) — For Kyle Shanahan, the chance to coach the San Francisco 49ers against the Dallas Cowboys in a playoff game is a throwback to when that rivalry was the biggest in football. Shanahan’s formative years were spent watching his father, Mike, as offensive coordinator in San Francisco battling the Cowboys in […]<!-- AddThis Advanced Settings above via filter on get_the_excerpt --><!-- AddThis Advanced Settings below via filter on get_the_excerpt --><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons above via filter on get_the_excerpt --><!-- AddThis Share Buttons below via filter on get_the_excerpt --><div class="at-below-post addthis_tool" data-url="http://www.metro.us/cowboys-49ers-rivalry-set-for-record-tying-9th-playoff-game/"></div><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><!-- AddThis Related Posts below via filter on get_the_excerpt --><div class="at-below-post-recommended addthis_tool" ></div><!-- AddThis Related Posts generic via filter on get_the_excerpt -->