Nix chose free agency rather than reporting to Triple-A Lehigh Valley after he was outrighted by the Phillies this week.
The Rays signed Nix to a Minor League deal in January, and he played for the team throughout Spring Training. But when he did not make the team, the Rays traded him to the Phillies for cash considerations.
Nix hit .154 with a home run and two RBIs in 18 games with the Phillies.
He has a .216 career average with 38 home runs and 128 RBIs in stints with the Rockies, White Sox, Indians, Blue Jays, Yankees, and Phillies.
He can play multiple positions and has played second base, shortstop, third base and the corner outfield positions during his Major League career.