Jake Peavy hoping for MLB comeback after ‘heartbreaking’ two years

The last time baseball fans saw Jake Peavy, he was struggling through a disappointing 2016 season with the San Francisco Giants. Peavy finished the season with a career worst 5.44 ERA, and was even demoted to the bullpen for the first time in his 15-year MLB career. Walking away after essentially serving as a mopup reliever isn't the ending any major league pitcher imagines for himself.