Frank Gifford, a star on the football field for the New York Giants and later a star in the broadcasting booth with the "Monday Night Football" team that helped popularize the NFL, died on Sunday at age 84, his family said.

Gifford, who was married to TV talk show host Kathie Lee Gifford, died suddenly of natural causes at his Connecticut home, his family said in the statement released to NBC.

"Deeply grateful to all 4 ur outpouring of grace," Kathie Lee Gifford tweeted, adding his family was "finding comfort in knowing where Frank is."