Steven Bradley Edlefsen
- Bats Both, Throws Right
- Height 6' 2", Weight 180 lb.
- School Barton County Community College, University of Nebraska
- High School Jefferson High School
- Debut August 21, 2011
- Final Game June 8, 2012
- Born June 27, 1985 in Minneapolis, MN USA
Steve Edlefsen was originally drafted by the Boston Red Sox in the 41st round of the 2004 amateur draft, however he did not sign. He spent two years at Barton County Community College, but missed all of the 2005 season after Tommy John surgery. Edlefsen transfered to the University of Nebraska and was drafted by the San Francisco Giants in the 16th round of the 2007 amateur draft. He was signed by scout Todd Thomas and began his professional career that season.
Edlefsen pitched for the Salem-Keizer Volcanoes in 2007, going 2-0 with a 1.62 ERA in 18 appearances. In 2008, he pitched for the San Jose Giants, going 8-5 with a 3.36 ERA in 40 games. He split 2009 between the San Jose Giants, Connecticut Defenders and Fresno Grizzlies and went 8-1 with nine saves and a 1.95 ERA, striking out 72 batters in 69 1/3 innings. In 2010, he pitched for the Grizzlies and went 7-2 with a 2.38 ERA in 49 games.
He spent most of the 2011 with Fresno, going 2-4 with a 5.66 ERA in 32 outings before being recalled by San Francisco in August when Brian Wilson went on the disabled list. He made his debut on August 21st, throwing a scoreless inning and a third of relief and striking out two against the Houston Astros. He had no record but a 9.53 ERA for the Giants that season. In 2012, he spent most of the year back in the minors, toiling for Fresno again, where he was 1-3, 3.79 in 35 games. In San Francisco, he appeared in 14 games with a loss and a 4.70 ERA. The Giants went on to win the World Series that season, but Edlefsen was not on the postseason roster.