Burnett, 37, has a $10 million player option for next season, which will increase to $12.75 million if he starts at least 32 games this season.
He is 6-14 with a 4.42 ERA this season for the Phillies, and his 76 walks are the most in the majors. Burnett said he has not made a decision about playing next season.
“I have no idea,” the pitcher said after taking the loss Tuesday night. “Probably not. But we’ll see.”
He has earned more than $135 million during his playing career.
The Phillies are 55-71 and in last place in the N.L. East.
- Paul Palladino