PHILADELPHIA — The Dodgers will likely face three consecutive left-handed starting pitchers in their National League Division Series against the Philadelphia Phillies (and four of five if the series goes the distance). That’s the main challenge – that they’re really good,” Dodgers manager Dave Roberts said. “But again, in the postseason, I’m trying to go with the best nine guys to start the game. One of our strengths is our starting rotation,” Dodgers president of baseball operations Andrew Friedman said. But obviously those guys are going to be a real challenge.”ROSTER MOVESThe Dodgers went with a lefty-heavy pitching staff on their NLDS roster.