Jessica Simpson is nursing her American football star boyfriend Tony Romo back to health after he collapsed following an intense match at the weekend.

The Dallas Cowboys quarterback fell in the shower following a defeat by the Philadelphia Eagles on Sunday, reports Espn.com.

Team sources tell the website medical staff brought a stretcher to the scene, but Romo walked on his own and had to be helped to the podium for a news conference shortly after the game - where he refused to answer questions about his health.

Reports suggest Romo may have suffered a rib injury in the second half of the match - the Cowboys' biggest loss ever at 44 to six.