Police believe jealousy fueled a man to follow his girlfriend to a Miami-Dade gym and attack her male friend Thursday.
Witnesses told police officers two men started to argue inside the Youfit Health Clubs location at 7070 Coral Way. The fight continued in the parking lot.
During the altercation, one man was stabbed.
Miami-Dade Fire Rescue found the victim laying shirtless on the ground. The attacker fled, according to authorities.
Miami-Dade police officers were searching for a blue 2007 BMW with gold rims and a missing front bumper.
They were asking anyone with information to call Miami-Dade Crime Stoppers at 305-471-TIPS.