Actress Brigitte Nielsen and New York Jets' defensive lineman Mark Gastineau have split up, but they can't leave behind one memento of their 6-month engagement.

They each have a tattoo of the other's name on their bottoms.Nielsen and Gastineau called it quits because their career demands made a "stable and long-lasting relationship" impossible, said her publicist, Joel Brokaw.

The couple announced their engagement last February and said in May that they were expecting a baby this fall.

But Nielsen, 25, suffered a miscarriage while filming a movie in Rome. She is divorced from her second husband, Sylvester Stallone.

A divorce between the 31-year-old Gastineau and his wife, Lisa, is pending.