Former Ravens starting nose tackle Ma'ake Kemoeatu successfully donated a kidney to his younger brother, former Pittsburgh Steelers offensive guard Chris Kemoeatu, during a surgical procedure in August.
The surgeries were conducted at the University of Maryland Medical Center in Baltimore.
The procedures required surgical intervention to correct preexisting health conditions to make sure that the Kemoeatu brothers were healthy enough to undergo the major transplant surgeries, according to a news release.
A press conference with the two brothers and their doctors is scheduled for Wednesday afternoon in Baltimore.
Ma'ake Kemoeatu, 35, had two stints with the Ravens for a total of five seasons in Baltimore after being signed by the Ravens originally in 2002 as an undrafted free agent from Utah.
He rejoined the Ravens in 2012 after one year away from the game, during which he lost 80 pounds to get down from 415 pounds to 337 pounds.
He beat out Terrence Cody for the starting job and started 13 games during the Ravens' Super Bowl XLVII championship season and recorded 29 tackles, one sack and a forced fumble.
Keomeatu also played for the Washington Redskins and Carolina Panthers.
For his nine-year NFL career, Kemoeatu recorded 266 tackles, five sacks and two forced fumbles.
Nicknamed 'Kemo,' Ma'ake Kemoeatu was popular in the Ravens' locker room because of his friendly personality and rich sense of humor.
Chris Kemoeatu played seven seasons for the Steelers, starting 53 of 75 career games.