The Mavericks picked up their first win in Sin City. Dallas defeated the Philadelphia 76ers 111-103 in Summer League action at Cox Pavilion in Las Vegas yesterday. Jaden Hardy paced the team with 24 points, while first-round rookie Dereck Lively the Second totaled eight points and 11 rebounds. The Mavs improved to 1-and-1 in Vegas. They will return to play against the Golden State Warriors tomorrow afternoon. The Rockets will take on the Oklahoma City Thunder at the Thomas & Mack Center tonight. Houston heads into the game 2-and-0.