A back spasm involves a sudden, involuntary muscle contraction that can be set off by something as routine as lifting a bag or sitting for too long. Muscle fatigue, dehydration, and nerve irritation ...

Blue Jays manager John Schneider said Sunday that Heineman has been contending with back spasms lately, Keegan Matheson of MLB.com reports. The back issue explains why Heineman will be held out of the ...

ORLANDO, Fla. (AP) — Rory McIlroy withdrew from the third round of the Arnold Palmer Invitational on Saturday when he felt muscle spasms in his back that were not going away. The spasms were not ...