Alberto Del Rio suffered a concussion during his WWE Raw match with Sin Cara on Monday night, and he will be re-evaluated on Tuesday to determine the severity of the injury.
WWE.com provides the news:
After speaking with Del Rio following his match, it was determined that he suffered the injury as a result of a top-rope sunset flip powerbomb. Following some initial testing, Dr. Amann diagnosed Del Rio with a concussion and will be re-evaluating him tomorrow, as well as administering an ImPACT test to determine a timetable for the former World Heavyweight Champion's recovery.
Del Rio appeared to hit his head extremely hard on the mat (you can see the match here; the spot occurs just after the two-minute mark), and it's pretty clear that this isn't part of the storyline.
As such, you can probably expect the company to keep it safe with the 36-year-old. He was lacking a little bit of direction—Monday marked his second straight loss to Sin Cara—and had yet to be booked for Sunday's Tables, Ladders and Chairs PPV, so this is as good a time as any for a break.
We'll be sure to keep you updated as more becomes known.