The Rockies placed veteran left-hander Jose Quintana on the 15-day injured list on Thursday (retroactive to March 30) with a right hamstring strain. They also optioned infielder/outfielder Ryan Ritter to Triple-A Albuquerque and recalled right-handed pitcher Valente Bellozo from Albuquerque.

Michael Porter Jr. will miss at least two weeks with a strained left hamstring, perhaps leaving the Nets without their leading scorer for the rest of the season.

The hamstrings are three muscles located on the back of your thigh, and they’re responsible for bending your knee and extending your hip,” says Marissa Cummo, PT, DPT, assistant director of physical therapy at NYC Health + Hospitals Bellevue.