Rangers' Adrian Beltre leaves with strained hamstring; MRI on Friday

ST. PETERSBURG, Fla. -- Texas Rangers third baseman Adrian Beltre will have an MRI on Friday to determine the extent of a strained left hamstring that could threaten to end his 20th MLB season only weeks after getting his 3,000th career hit.

Beltre was injured when fielding a slow short hopper in the seventh inning of the Rangers' 5-1 loss to the Houston Astros on Thursday. Beltre took a couple of steps after fielding the ball and it became immediately clear when he hopped up awkwardly without trying to make a throw that something was wrong.

"It's not good," a clearly distraught Beltre said afterward about his level of pain.

When asked if he thought he could play, the 38-year-old third baseman…