A pulled muscle—medically known as a strain—occurs when muscle fibers are stretched too far and sometimes tear. While mild muscle strains can show improvement in as little as three days ...

More torn fibers result in a sprain ... Stay flexible to keep your body safe from pulled muscles. So don't skip stretches before and after a workout. More from Science A triangle pointing right ...

Dealing with what he said was a torn muscle, Djokovic lost the opening set ... This time, Djokovic could not pull off a similar escape. And afterward, there was a lot Djokovic was unsure about.

Top-ranked Carlos Alcaraz will miss the rest of the season after sustaining an abdominal muscle tear while playing at the Paris Masters. The Spanish teenager pulled out during a second-set ...