The Mariners have had a great deal of recent success in the international market, signing the likes of Julio Rodriguez, Lazaro Montes and Felnin Celesten in the past decade. Joseph, who received a $3 million bonus this January, is a very promising prospect in his own right, and he has been trending in the right direction over the past year. An athletic shortstop with plus speed and a projectable 6-foot-2 frame, Joseph has shown an impressive approach in games, so he could rocket up rankings if he performs well this year in rookie ball. Read Past Outlooks