According to WebMD, "A muscle cramp is a strong, painful contraction or tightening of a muscle that comes on suddenly and lasts from a few seconds to several minutes."
The comments went wild offering sympathy and tips for Bermudez. One woman suggested Bermudez put mustard on the cramp and said that tons of athletes do it. And in fact, it might work!
Cramps can be caused by a deficiency in acetylcholine, the neurotransmitter that stimulates muscles to work. Mustard contains acetic acid, which helps the body produce more acetylcholine.
Bermudez replied to one comment saying, "Looked like a god damn alien in my damn leg was gonna bust out".