LOS ANGELES — The Sky needed this one. The Sparks entered the game below .500 and were still without leading scorer Kelsey Plum, making this the more manageable stop before the Sky close their road trip against the 15-8 Wings. Instead, the Sky lost 102-87, falling to 7-15 and four games behind the eighth and final playoff spot. And they were once again without point guard Skylar Diggins, who hasn't played since being benched on Monday. "I think they stole one from us today, and credit to them,