![70f312ab-](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2018/09/1200/675/072915-MLB-Sonny-Gray-2-SS-PI.vresi-a6f8bb359872f410VgnVCM100000d7c1a8c0____.jpg?ve=1&tl=1)
LOS ANGELES, CA - JULY 28: Sonny Gray #54 of the Oakland Athletics throws a pitch against the Los Angeles Dodgers at Dodger Stadium on July 28, 2015 in Los Angeles, California. (Photo by Stephen Dunn/Getty Images)
Oakland Athletics right-hander Sonny Gray has been scratched from his start against the Toronto Blue Jays because of back spasms.
Right-hander Jesse Chavez will start against his former team in place of Gray on Thursday afternoon. Chavez pitched in nine games for Toronto in 2012. He is 6-11 with a 3.73 ERA.
Gray is the AL ERA leader at 2.06 and will miss his start against the highest-scoring offense in baseball. Toronto, which has won 10 straight, leads the major leagues with 611 runs this season. The New York Yankees are second with 534.
Gray is 12-4 in 23 starts and has lost just once in his past 10 outings.