Originally acquired from the D’Backs last August, Negron has appeared in 27 total games for Seattle, including nine outings this season. The 33-year-old has a career .216/.289/.328 slash line over 357 career MLB plate appearances in parts of six seasons, though his ability with the bat is much less important to the Dodgers than the versatility that Negron brings in the field.
Negron has started multiple games at every position on the diamond except pitcher and catcher over his career, making him a fit for a Dodger roster that just lost Enrique Hernandez to the injured list. With both Hernandez and Chris Taylor injured, L.A. was in need of a short-term backup behind Corey Seager at shortstop.
Castro joined the Dodgers on a minor league contract over the offseason, and has hit .241/.304/.295 over 185 Triple-A plate appearances this year. Castro is another player who can play all over the field, with extensive experience as a shortstop and second baseman, plus some time as a right fielder and third baseman. He is a veteran of 98 big league games with the Braves and Rockies from 2016-18, with a .505 OPS over 286 PA in the Show.