Former Giants pitching prospect Phil Bickford is suspended for the first 50 games of the 2017 Carolina League season for a second positive test for drug of abuse, MLB announced on Friday.Before the 2016 deadline,San Francisco traded the 21-year old (along with Andrew Susac) to the Brewers in exchange for left-handed reliever Will Smith.The Giants selected Bickford with the 18th overall pick in the 2015 draft.Over 11 starts for Single-A Augusta last year, the right-hander went 3-4 with a 2.70 ERA.