Vogelsong, 37, finished with an 8-3 record and a 4.00 ERA, 151 strikeouts in 32 starts. He pitched in four games, including three starts, during the team's 2014 playoffs and had a 6.57 ERA.
He joined the Giants in 2011 after a five-year stint with the Pittsburgh Pirates. Vogelsong began his career in San Francisco with the Giants in 2000, before moving on to Pittsburgh in the 2001 season. He won the World Series with the Giants in 2012 and 2014.
With Tim Hudson coming off of ankle surgery and Matt Cain still recovering from an elbow procedure, Vogelsong is an insurance policy move for a starting rotation that already includes the likes of Madison Bumgarner, Tim Lincecum and Jake Peavy.
In his 10-year career, Vogelsong carries a record of 49-57 with a 4.42 ERA and 731 strikeouts.
- Jack Jorgensen