A.J. Ellis is set to make his first start for the Phillies when he catches 24-year-old Vince Velasquez (8-6, 4.31 ERA), who is winless in seven outings since July 8. The 35-year-old Ellis, obtained Thursday from the Dodgers in a surprising trade for Carlos Ruiz, was brought in to mentor the team’s young pitchers. “The waves of emotion are getting farther and farther apart, which is a good thing,” Ellis said. “I’ve started feeling re-energized, filled with a sense of purpose as to why I’ve been placed here and why this is where I need to be at this time, so I’m excited about that. And I’ve got huge shoes to fill, I know that.” Robert Gsellman makes his first major league start for the Mets. He won his debut Tuesday at St. Louis with 3 2/3 scoreless innings in relief.