Landry left Baylor University Medical Center on Sunday after receiving chemotherapy, said his wife, Alicia. Landry was set to remain under outpatient care. She said her husband is awaiting a follow-up examination to determine the results of the chemotherapy.

"He doesn't hurt or anything. He walks in the evening," Alicia Landry said. "When the weather's nice, we walk outside."

Although the family was gathering for Thanksgiving dinner, the guest list was short because the chemotherapy has suppressed Landry's immune system, leaving him more vulnerable to infection.

Landry, 75, has been under treatment since May for acute myelogenous leukemia, also known as AML, a cancer that impairs the production of blood cells.

Tests showed in August that the disease had at least been brought to the stage of temporary remission but that more treatments were necessary.

Earlier this month, Alicia Landry said her husband had not yet entered a state of remission.

Landry, who led Dallas to five Super Bowl appearances and two victories, was too weak to attend an October banquet at which he and former Cowboys quarterback Roger Staubach were honored with Lifetime Achievement awards.

Landry ran the Cowboys for 29 years, beginning with the initial season of the franchise in 1960. His final season was 1988, and he was fired after Jerry Jones bought the team in 1989.

Landry is the third among NFL coaches with 270 career victories.

Tom Landry Jr. has said he remains "cautiously optimistic" his father will enter into remission.