Gray (back) was activated from the disabled list Monday.
As expected, Gray has rejoined the Athletics in time make his season debut against the Twins on Tuesday after missing the first month of the season with a lat strain. The 27-year-old is looking to bounce back from a disappointing 2016 that saw him post career worsts in ERA (5.69) and WHIP (1.50) across 117 innings (22 starts). Gray looked sharp in two rehab outings before being activated, going 2-0 and allowing just three hits while posting a 13:0 K:BB through 11 innings. Outfielder Ryan LaMarre was optioned to Triple-A in a corresponding move.