Texas reliever was hold-up

The trade to make Joey Gallo a Yankee changed Wednesday night after the Yankees expressed concerns about the medical records of Rangers reliever John King, multiple sources told The Post.

Texas substituted lefty reliever Joely Rodriguez for King and the Yankees subsequently altered the mix of minor leaguers going to the Rangers, and the transaction was made official by both teams Thursday.

King, 26, a southpaw like Rodriguez, is currently on the 10-day injured list with left shoulder fatigue, having last pitched on July 6.

The Rangers believe that King, who already has thrown off a mound in his rehabilitation, will be back pitching in August or September. He owns a 3.52 ERA in 27 games totaling 46 innings pitched on the season, striking out 40 and walking 12. The Yankees liked him enough that they were willing to include center-field prospect Everson Pereira, whom they value highly, in a package for King and Gallo.

But a deep dive on King left the Yankees concerned with at least his shoulder, and that prompted the shift in the deal’s terms.