George Kittle (85) runs after a catch in the fourth quarter for a first down as the San Francisco 49ers played the Arizona Cardinals at Levi's Stadium in Santa Clara, Calif., on Sunday, October 7, 2018.
George Kittle (85) runs after a catch in the fourth quarter for a first down as the San Francisco 49ers played the Arizona Cardinals at Levi's Stadium in Santa Clara, Calif., on Sunday, October 7, 2018.
Photo: Carlos Avila Gonzalez / The Chronicle Buy photo
Kyle Shanahan should have been practically skipping into the auditorium at Levi’s Stadium late Sunday afternoon, but instead he entered with a glum-faced trudge.