Favre's mother, Bonita, told a Mississippi newspaper on Monday that her daughter-in-law underwent a lumpectomy recently at the Sloan Kettering Cancer Center in New York and will undergo chemotherapy treatments for the next five months.
Bonita Favre told The Sun Herald in Biloxi, Miss., that Deanna Favre was expected to make a full recovery.
Brett Favre was told of the cancer on Oct. 14 and skipped practice so he could be with his wife. Favre returned to practice the next day and played in the Packers' 38-10 victory over the Detroit Lions on Oct. 17.
It was unclear whether Favre traveled with his wife to New York when she underwent surgery.
Favre's brother, Scott, told the newspaper that the prognosis for Deanna's recovery was good and that Brett was in good spirits.
"Brett was relieved to learn that the situation is not as bad as it could have been," Scott Favre said. "We think that they got (all of the cancer) out."
The Packers did not release a statement Tuesday on their own or the Favre family's behalf. Favre and his teammates had the day off and were not made available to reporters.
The quarterback learned of Deanna's illness a week after her younger brother, 24-year-old Casey Tynes, was killed in an ATV accident Oct. 6 on Brett Favre's land near his home in Oak Grove, Miss. Favre left the team after practice on Friday, Oct. 8, and attended the funeral with his wife in Poplarville, Miss.
He returned in time to play in the Packers' Monday night loss to Tennessee.
In December, Brett's father, Irvin Favre, died of a heart attack at age 58.
Deanna and Brett Favre met while growing up in Mississippi and were married on July 14, 1996. They have two daughters, Brittany, 15, and Breleigh, 5. During the football season, Deanna and Breleigh live in Green Bay with Brett and Brittany lives in Mississippi. After the season the family lives together in Mississippi.
Deanna Favre runs the Brett Favre Fourward Foundation, which has raised more than $1 million for disadvantaged or disabled children in Wisconsin and Mississippi.
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