Alexander only started playing safety his senior year after starting as an outside linebacker at Utah State. He earned All-Mountain West honorable mention with 80 tackles, 4.5 sacks and 9 tackles for a loss. At the NFL Combine, he raised his stock with a 4.5-second 40-yard dash at 6-foot-2 and 220 pounds.
Alexander went to Eureka H.S., in Missouri, and attended Arizona Western junior college before he went to Logan.
There was a significant bump in Alexander's career: He spent a year out of the football program after getting in a fight with teammate Joey DeMartino. He spent a year back home in St. Louis trying to get back in Utah State's good graces.
On Saturday, he revealed that he spent part of that year working as a janitor at the Rams' Edward Jones Dome. Now, he'll get a chance to play in that stadium where he once spent hours sweeping up among the seats.
"Every time I went to work, I always sat on the end of the field, and I looked at it like, 'This could be my dream spot,'" he said. "Look where I'm at now."
Alexander said he talked scheme with defensive coordinator Gregg Williams about where he might fit in the Rams' scheme, and he's excited by the possibilities.
"He's a great coach," he said. "Obviously you guys know, he's been in the league a very long time and I can't wait to be a player for him."