Lucas John Gregerson
- Bats Left, Throws Right
- Height 6' 3", Weight 200 lbs.
- School St. Xavier University
- High School Morton (IL) High School
- Debut April 6, 2009
Luke Gregerson was a two-way threat in college, winning Chicagoland Collegiate Athletic Conference player of the year award after hitting .335 as a rightfielder and posting a 0.68 ERA as a closer. He was drafted by the St. Louis Cardinals in the 28th round of the 2006 amateur draft. He was signed by scout Scott Melvin and made his pro debut that summer.
- 30 Saves Seasons: 1 (2015)