Every single NBA team is headed to Las Vegas, this summer. On Tuesday, the league announced that all 30 teams will participate in the NBA Summer league. The NBA is also adding one more day to the event, which will run from July 6th, through the 17th, at UNLV. Summer League started in Las Vegas in 2004, with just six teams, playing 13 games. Last year, that number was at 24 teams, and this year it will be every team, playing 82 games. The Pistons join five other teams, in the roster, this year.