Trevor Jordan Rosenthal
- Bats Right, Throws Right
- Height 6' 2", Weight 190 lb.
- School Cowley County Community College
- High School Lee's Summit West High School
- Debut July 18, 2012
Rosenthal was taken by the Cardinals in the 21st round of the 2009 amateur draft and began his pro career that summer with the GCL Cardinals, leading the team with 4 wins. He only lost one game and struck out 26 in 24 innings but also walked 10 and had a 4.88 ERA. He was with the Johnson City Cardinals the next year, going 3-0 with a 2.25 ERA and a save in 10 outings. His control was much better, with just 7 walks in 32 innings. He was with the Quad Cities River Bandits in 2011, and after going 7-7 with a 4.11 ERA in 22 starts, he was 2-0 with a 1.50 ERA in the postseason and was the winning pitcher in the Midwest League Championship game. He was 6th in the Midwest League in strikeouts (133).
Rosenthal began 2012 with the AA Springfield Cardinals and was 8-6 with a 2.78 ERA and .202 opponent average in his first 17 starts, tied for second in the Texas League in wins behind Barret Loux. He was then called up to the bigs.
He made his major league debut against the Milwaukee Brewers on July 18th, relieving Adam Wainwright with a 4-2 deficit in the 8th inning. He walked Nyjer Morgan and allowed an Aramis Ramirez single. He recovered to fan Corey Hart and get Rickie Weeks on a liner but walked Martin Maldonado to load the bags before whiffing Carlos Gómez to escape the jam without any damage.
- NL All-Star (2015)
- 30 Saves Seasons: 2 (2014 & 2015)
- 40 Saves Seasons: 2 (2014 & 2015)