Boston Red Sox pitcher John Lackey has filed to divorce his wife, Krista, who is in the middle of battling breast cancer, TMZ reports.
Lackey filed on August 30, according to court docs in Texas, claiming "the marriage has become insupportable because of discord or conflict of personalities."
Krista and John got married in November, 2008.
Sources close to the family tell TMZ that Krista underwent a double mastectomy in March and underwent chemotherapy as recently as June.
The divorce petition says John and Krista had a prenup. It also says Lackey has "separate property" he wants to keep for himself.
Lackey filed the divorce papers using only his and Krista's initials, a tactic Tony Parker and Eva Longoria, and Sandra Bullock and Jesse James, also used in their Texas divorces.
It's unclear why Lackey, who's struggled on the field all season long, didn't wait until the off-season, which for the reeling Red Sox could start in a week or so, to start divorce proceedings.
Lackey's camp had no comment.