MLB.com's Corey Brock reports that the Padres are "encouraged" by Chase Headley's (calf) progress. Brock tweets that the feeling he's getting is that the third baseman's DL stint "won't exceed the 15 days or if it does it won't be by much." Headley strained his right calf while leaving the batter's box during Thursday's game. He's eligible to return on May 10?