Twins manager Rocco Baldelli said that Castro left Wednesday's 4-3 extra-inning win over the Mets in the eighth inning due to tightness in his right oblique, Dan Hayes of The Athletic reports.
Castro started at shortstop and went 2-for-3 with a double before departing with the injury, which Baldelli described as minor. With Carlos Correa dealing with a hand injury, the Twins may need to call up another infielder if Castro isn't available for the team's next game Friday in Atlanta.