Wearing a "F*** the 49ers" T-shirt to a 49ers game wasn't the brightest idea, but it could prove deadly for a man shot two to four times in the stomach last night following a preseason game against the Oakland Raiders. The 24-year-old is in critical condition, reports the San Francisco Chronicle. Police detained a 20-something in Raiders attire on a party bus a short time later. A second man was shot in a parking lot; it's unclear if the two shootings were related, though police believe all three men attended the game at Candlestick Park. (More Oakland Raiders stories.)