It 's a wonder that Weaver was able to make it through 31 starts and 178 innings in 2016 .
Weaver 's average fastball velocity fell to 83 miles per hour last year .
It 's a wonder that Weaver , whose average fastball velocity fell to 83 miles per hour last year , was able to make it through 31 starts and 178 innings in 2016 .