2:39pm: Heyman reports that Nieves is guaranteed $1.125MM and can earn up to $500K in performance bonuses (Twitter link).
THURSDAY, 1:36pm: The Phillies announced Nieves' deal, which ESPN's Jayson Stark notes is a Major League pact.
Nieves, 36, hit .297/.320/.369 in 206 plate appearances for the Diamondbacks last season. Arizona retained the veteran with a one-year, $800K deal right around this time last year. For his career, Nieves owns a .242/.283/.314 across ten big league seasons.