The Diamondbacks have signed catcher Oswaldo Garcia, a player some scouts considered the top prospect this year from Colombia.

Garcia, 16, has a large frame (6-foot-3, 215 pounds) and offers intriguing power from the right side. Garcia is a former pitcher with a strong arm, though as a bigger catcher he will have to continue working on his lateral agility behind the plate.

"The tools are there," said one scout. "He's going to be a guy who, in the next two years, you might have a a really good guy behind the plate with a chance to hit for power. It's a good swing and he hits in games. He's pretty good."

Arizona also signed Fernery Ozuna, a 16-year-old Dominican shortstop. At 5-foot-8, 165 pounds, Ozuna is undersized but he's a switch-hitter who is better from the left side and shows sneaky power. He's not a burner but he's a high-energy player with good instincts who flashes an above-average arm.