The Seattle Mariners' baseball system is home to two top pitching prospects, Kade Anderson and Ryan Sloan, both left-hander and right-hander, highlighted by their strong lefty-righty arsenals. Anderson, who is currently ranked No. 2 and No. 21 overall, could follow Trey Yesavage's path from the first round of the Draft to become a playoff hero the next year. Anderson's four pitches grade as solid or better and he throws them all for quality strikes. The Mariners' focus has been on adding strength to Anderson's frame to prepare him for a full pro season, which has resulted in added velocity on his fastball and slider. Meanwhile, Casey Emerson has impressed the big league staff with his defense at shortstop and third base, raising his potential as a future star.