Butler was added to the Athletics' 40-man roster Tuesday.
A physically impressive corner outfielder and designated hitter, Butler hit .270/.357/.468 with 11 home runs, 13 steals and a 31.5 percent strikeout rate in his age-21/22 season at High-A. Now that he is on the 40-man roster, the clock will be ticking on Butler to adjust to a higher level of pitching at Double-A.