BY TIM REYNOLDS
AP SPORTS WRITER
MIAMI GARDENS, Fla. -- Michael Sam is about to get one last chance to show the St. Louis Rams why he belongs on their 53-man roster.
For him — and everyone else on NFL roster bubbles — a preseason finale is anything but meaningless.
Sam and the Rams visit the Miami Dolphins on Thursday night, the last exhibition for both clubs and the last opportunity for players to state their cases before teams pare down their rosters to the NFL-mandated 53 by Saturday afternoon.
"I will be playing a lot more," Sam told the Rams' website in a videotaped interview.
The NFL's first openly gay player is battling for a spot on St. Louis' defensive line, which just happens to be a position where the Rams are extremely deep. Sam has shown some flashes of great potential — his sacks of Johnny Manziel against Cleveland last week maybe foremost among them — but knows those plays alone won't win him a job.