49ers Pre/Post September 12, 2021 2:11 pm Whitner ‘very concerned' about 49ers defense following win Despite the win, Donte Whitner saw a lot of issues with the 49ers defense that will need to be cleaned up. 49ers videos 1:30 Watch Brenden Rice's receiving highlights from USC 1:32 Watch Frank Gore Jr.'s rushing highlights from Southern Miss 5:42 49ers' seventh-round pick Bethune models game after Greenlaw 20:08 Lynch, Shanahan break down 49ers' picks from Day 3 of NFL draft 1:31 Watch 49ers seventh-round draft pick Tatum Bethune's college highlights