He was declared to need Tommy John surgery , ending his 2017 season plus the whole 2018 season .
Gonzalez was diagnosed with a partial tear to the UCL in spring training of 2017 .
Gonzalez was declared to need Tommy John surgery , ending Gonzalez 's 2017 season plus the whole 2018 season .
Gonzalez was diagnosed with a partial tear to the UCL in spring training of 2017 .