The Mariners have signed Luis Liberato, a 17-year-old Dominican outfielder, for $140,000.

Liberato is 6-foot-1, 175 pounds and has flashed a mature approach to hitting from the left side with gap power and advanced baseball instincts for his age. Like many young Dominican amateur hitters, he'll try to sell out for power at times, but when he's at his best he's shown a solid swing. The Mariners believe he can stay in center field, though he has the arm for right field if necessary.

Liberato is from Santiago and trained with Mackey Moreno. He also worked with Franklin Taveras, the father of Mariners Dominican scout Franklin Taveras Jr., who was influential in the signing. It's the first six-figure international signing for the Mariners since they hired Tim Kissner as their international director after the 2012 season and brought in Eddy Toledo as a scout from the Rays.