Sierra, D-Link, and VitalStream have announced their upcoming Tribes 2 Labor Day Arena Tournament. The double-elimination tournament will be held this Sunday, September 2, and it will be free to enter. Participants will be randomly assigned to one of four servers, and they will then have the chance to fight their way to the prize round, where they can win Tribes 2 Summer Games 2001 T-shirts. For more information about the tournament, or to register, visit the official D-Link tournament Web site. To learn more about Sierra's team-based action game Tribes 2, take a look at our full review of the game.