Toronto Blue Jays first baseman Vladimir Guerrero Jr. (hamstring) left Monday's series opener against the Pittsburgh Pirates ...

Vlad Guerrero Jr. was pointing toward his hamstring and openly complaining about the injury throughout Monday's contest at ...

Is your hamstring injured? Train cardio with exercises that don’t involve the legs or minimize their use to help maintain ...

Toronto Blue Jays first baseman Vladimir Guerrero Jr. left Monday night's 5-2 loss to Pittsburgh in the fifth inning with hamstring tightness following a pair of stellar defensive plays.

Pulled hamstrings generally aren't serious, so you can often treat them at home. If pain and swelling get worse, or you can't walk, call your doctor right away.

MANKATO, Minn. (AP) The Minnesota Vikings have taken a cautious start to the season with running back Adrian Peterson, because of a hamstring pull he suffered prior to training camp while working out.

Mar. 23 -- (HealthDay News) -- Hamstring injuries are common, and can affect anyone -- professional athletes, adolescents and older people. These injuries often happen to those who doesn't ...

Dear Running Doc: I was tripped at the start of a 5K and pulled my hamstring, and now I can’t run without pain. Friends tell me to try to run as usual. I want to return to running as soon as … ...