Lucas John Gregerson is an American former professional baseball pitcher. He played in Major League Baseball (MLB) for the San Diego Padres, Oakland Athletics, Houston Astros and St. Louis Cardinals. He set the major league record for holds in a single season with 40, until Joel Peralta of the Tampa Bay Rays broke the record with 41 holds in 2013. He attended J. Sterling Morton High School West in Berwyn, Illinois, and Saint Xavier University.

The 2010 San Diego Padres season was the 42nd season in franchise history. On August 25, the Padres had a 6+1⁄2-game lead over the second-place San Francisco Giants, but ended up missing the playoffs as the Giants passed them in September. This was the last winning season the Padres would have until 2020.