The Chargers announced Tuesday that 1,800 tickets are still on sale for Sunday's season opener against the Vikings. The team has until 4:15 p.m. ET Thursday to sell the remaining general tickets to avoid being blacked out on local television. The Chargers also have 1,500 club seats available. Tickets are available for all eight of the team's regular-season home games. The Chargers struggled to sell out preseason games as well. Source: Pro Football Weekly