This is one of the reasons his pushes have been curtailed in the past year. He is said to be very reckless in the ring.
As noted, he gave Dolph Ziggler a concussion from a stiff clothesline at last night's Superstars taping.
Word is that Ziggler's concussion is not a mild one. Ziggler has had problems in the past with concussions.
It looks like he will miss the Royal Rumble match.
Partial Source: PWInsider