Mets’ Jacob deGrom works on curveball, and it leads to a J.D. Davis homer

PORT ST. LUCIE — Coming off back-to-back NL Cy Young Awards, Jacob deGrom said he feels there is still room for improvement, which is why he threw the curveball J.D. Davis hit for a home run during a simulated game on a back field Friday. “I’ve been putting some work in-between [starts] on it and...