The Mariners are among five finalists to land outfielder Daniel Carbonell, a Cuban defector, according to Ken Rosenthal of FoxSports.com.
Rosenthal also cited the Yankees as a finalist but did not identify the other clubs. Carbonell must sign prior to July 2 or his bonus will be subject to Major League Baseball's international spending limits.
Carbonell, 23, is generally characterized as a center fielder with speed and some power. A switch-hitter, he batted .278 with a .378 on-base percentage and a .405 slugging percentage in 127 plate appearances last year for Cuba before defecting.
Here's a YouTube video of his workout: