Police spokesman Juan Sanchez says Stallworth hit a man crossing the busy causeway that links downtown Miami with Miami Beach around 7 a.m. Saturday.

The man was pronounced dead at a trauma center. He was near a crosswalk but it's not clear if he was crossing legally.

Stallworth is cooperating and no charges have been filed. Officers drew his blood to test for drugs or alcohol, which is routine. Police say it's too early to tell if Stallworth was violating traffic laws.

The 28-year-old former New England Patriot signed a seven-year, $35 million contract with the Browns as a free agent before last season but hardly played because he was hurt.