Lana suffered a wrist injury yesterday while in the ring training before the show in Fairfax, VA.
X-rays showed a fracture, described by Dr. Chris Amann as a Colles fracture and her wrist was put in a splint. Amann said that most likely she would undergo surgery. She would be unable to perform physically in the ring for about four months.
The WWE web site has a report on this at http://www.wwe.com/inside/lana-injured-while-training