He won't be around to help turn their struggling offense around for the near future, either.
Texas looks to snap out of its funk Tuesday night when it hosts the Seattle Mariners, who got their offense going in the series opener.
Beltre was hitting .286 with four RBIs through Texas' first eight games, but he's been out for the last five while dealing with a strained left quadriceps. Much to his displeasure, Beltre was placed on the disabled list Sunday and will have to wait to get back in the lineup.
He said he was looking forward to attempting to return for this contest.
"I did not agree with the decision. It was out of my hands," Beltre said Monday. "Obviously the medical staff and the front office thought it was best. ... I have no say over that."
The Rangers (6-7) have totaled 10 runs in his absence and have scored just once in three of their last four contests. Kevin Kouzmanoff's RBI single in the seventh inning was all they could manage in Monday's 7-1 loss to the Mariners.
Prince Fielder had two hits, but he's batting just .176 and has yet to homer.
Seattle also came into this series struggling offensively, having been shut out in two games and scoring just once in another while dropping three of its previous four.
Mike Zunino hit a solo homer in the fifth before adding an RBI single in a six-run sixth inning for the Mariners (7-5), who also got a pair of hits from Michael Saunders, Kyle Seager and Justin Smoak.
Saunders entered in the bottom of the first after Logan Morrison couldn't take right field due to tightness in his right hamstring.
Seattle already is dealing with an injury to starting pitcher James Paxton, who strained his left lat muscle last Tuesday. That has opened the door for Blake Beavan, who will make his season debut in this contest.
Beavan, who was the Rangers' first-round pick in 2004, went 0-2 with a 6.13 ERA in two starts and 10 relief appearances last season and was sent to the minors for good in mid-July. He began this season in Triple-A after struggling in spring training, but he's gone 1-0 with a 2.08 ERA in two starts in the minors.
"I'll have to get a game plan together and just keep doing what I've been doing since I left spring training really," Beavan told the team's official website. "I don't want to change too much of what I've had success with and what my game plan is going to be going forward."
The right-hander is 3-3 with a 2.41 ERA in six career starts against the Rangers, last facing them in 2012.
Texas will counter with Robbie Ross, who hopes to have better control in this outing.
Ross (0-0, 1.74 ERA) allowed an unearned run and two hits in 5 1/3 innings of Texas' 4-2 loss to Boston on Wednesday in his second major league start, but he struggled with his command while walking six.
"I just need to go out and attack and not be as fine," Ross told the team's official website. "Work quick innings and not throw so many pitches, get some quick outs."
The left-hander has made 12 relief appearances against Seattle, going 0-1 with a 2.03 ERA.