EDINBURG — For the 10th straight season, the Rio Grande Valley Vipers have clinched their way into the NBA G League Playoffs.Although the regular season is not over yet, the Vipers’ 2112 record has put them in a three-way tie with the Stockton Kings, which is affiliated with the Sacramento Kings and the Austin Spurs, which is affiliated with the San Antonio squad. As for the Vipers, they are the G League affiliate of the Houston Rockets.The squad has been on a road trip since March 17. During that road trip, as of press time, they are 1-2.On Saturday, theVipers ...