In the August 31, 2016, trade for outfielder Ben Gamel, the Seattle Mariners dealt teenage righthanders Juan De Paula and Jio Orozco:
https://www.baseball-reference.com/register/player.fcgi?id=depaul000jua
https://www.baseball-reference.com/register/player.fcgi?id=orozco000jio
Gamel, the 2016 International League Most Valuable Player, started the 2017 season in the minors but has posted 2.0 fWAR in 78 games with the Mariners. Gamel's current .321/.373/.462/.835 line in 336 plate appearances is bolstered an outlying BABIP of .416. Last night a Seattle radio broadcaster noted that the absence of opponents' defensive shifts against Gamel, who sprays the ball to all fields, likely contributes to Gamel's unusually high BABIP.
The Mariners are pleased with the performances of rookie outfielders Guillermo Heredia, Mitch Haniger and Gamel (along with veteran Jarrod Dyson) to the point that Leonys Martin, who posted 2.2 fWAR last year, remains in the minors.