New Mexico women's soccer defender Elizabeth Lambert has been suspended indefinitely after engaging in rough play -- including hauling an opposing player to the ground by her pony tail -- in the Lobos' 1-0 loss to BYU in the Mountain West Conference semifinals.

Lambert is prohibited from taking part in practices, games and conditioning, coach Kit Vela announced Friday.

"Liz is a quality student-athlete, but in this instance her actions clearly crossed the line of fair play and good sportsmanship," Vela said.

Video footage of the game shows Lambert, a junior, committing a series of excessively rough plays, including kicking, tackles, a forearm shiver to the back -- in response to an elbow to the ribs -- and yanking BYU forward Kassidy Shumway to the ground by her hair.

Lambert was assessed a yellow card during the 76th minute, apparently for tripping.

On Friday, Lambert apologized for her actions, saying she was "deeply and wholeheartedly regretful."