Tongan ex-NFL player Ma'ake Kemoe'atu (35) has donated one of his kidneys to his ailing brother Chris Kemoe’atu (31) who is also a former NFL player. The act of brotherly love has won the admiration of many.

Chris Kemoe'atu needed a new kidney after suffering from kidney failure. His older brother vouched for him with a successful kidney transplant that took place last month. According to the surgeon, the kidney of the 6’5 Ma'ake Kemoe'atu was the “largest normal kidney” he had ever seen.

Both brothers were born in Tonga and have played for super-bowl winning teams. The younger brother, the 6’3 foot Chris Kemoe'atu was an offensive guard for the Pittsburg Steelers team that won two Super Bowls in 2006 and 2009. The older brother, 6’5 foot Ma'ake was a defensive tackle for the Baltimore Ravens team that won the Superbowl last year, 2013.

The Kemoe’atu brothers visited Tonga in 2011, meeting Prime Minister Tu’ivakano and stating their wish to help Tongan youth in education and sport. They were both praised by Prime Minister Tu’ivakano who told them "You have become an inspiration and a role model for Tongan youths and even though you grew up in the United States but you have never forgotten your motherland,"