Beltre left the game after sliding into second base on a fielder's choice in the fifth inning. The Rangers later announced that Beltre has a sprained right thumb and a laceration that took four stitches to close.
On Monday, Jon Heyman of CBS Sports reported that Beltre suffered a dislocation and is seeking a second opinion.
The injury leaves the Rangers without a true third baseman. Utility infielder Adam Rosales, who has been the starting second baseman since Rougned Odor was demoted to Triple A earlier this month, has played in 92 games at third over eight seasons.
Beltre, 36, has not missed a game since last April, a streak of 191 games. He is batting .251 with six home runs this season.
- Dan Gartland