Programming note: A's-Blue Jays coverage starts this morning at 9 a.m. with A's Pregame Live on CSN California.
The Blue Jays are the hottest team in baseball.
Sonny Gray is one of the best pitchers in baseball.
But the A's ace will not face Toronto on Thursday because of back spasms, the team announced.
Jesse Chavez, who was slated to start on Friday in Baltimore, will take the mound in Gray's place.
Gray is 12-4 with a 2.06 ERA through 23 starts this season.
The Blue Jays have won 10 in a row and lead MLB in runs (611), OBP (.