American actress-singer Jennifer Lopez and husband Marc Anthony are facing a lawsuit from a woman who alleges she was injured by the couple's dog. Flight attendant Lisa Wilson has filed papers at New York's Brooklyn Federal Court claiming she suffered a serious back injury after the couple's German Shepherd, Floyd, bumped into her legs during a flight and knocked her to the ground, reports contactmusic.com.

Wilson alleges the 2006 incident could have been prevented if the dog had been given better training and she's hired an animal behaviour expert in a bid to back up her claims.

"The dog was obviously dangerous and we will prove at trial that it was only a matter of time before he hurt someone," said Wilson's lawyer William Cafaro.

Joseph Varvaro, a lawyer for Lopez and Anthony, has also hired his own animal behaviour expert to evaluate Floyd.