The Chicago White Sox exercised their $4.65 million club option on relief pitcher Nate Jones while declining to pick up starting pitcher James Shields' $16 million option for 2019 in favor of a $2 million buyout. Jones only threw 30 innings in 2018 due to arm injuries, but he had a 3.00 ERA and five saves in 33 appearances and could be in the mix for more saves next year if he's healthy. Shields went 7-16 with a 4.53 ERA, 1.31 [...]