Sanchez, who learned basic ventriloquism for the role, described being on the reality singing competition as the "strangest experience" he's ever gone through:
The 33-year-old USC product becomes the fourth person eliminated from the show, joining rapper Busta Rhymes and actors Mickey Rourke and Brian Austin Green.
Sanchez performed "Faith" by George Michael in Week 2 and "It's Time" by Imagine Dragons in Week 4 before his elimination.
Sanchez started his pro career as a first-round pick of the New York Jets in 2009. He went on to play for the Philadelphia Eagles, Denver Broncos, Dallas Cowboys, Chicago Bears and Washington Football Team across 10 seasons in the NFL.
He's recently served as an analyst on Fox Sports' coverage of college football.