"We take him with the intention of playing him at shortstop," said Rob Metzler, Rays director of amateur scouting. "Where the game of baseball takes him over the course of his career, who knows, but we like his shortstop ability."
The Draft concludes on Wednesday, with exclusive coverage of Rounds 11-40 beginning on MLB.com at noon ET.
With Walls, the Rays are getting a switch-hitter who established himself as one of the better middle infielders in the nation as a sophomore.
"He's a guy that can just literally be a game-breaker, whether it's an outstanding defensive play or just being heads-up on the bases," Florida State coach Mike Martin said.