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In terms of the bullpen, with the exception of closers like Mariano Rivera or Trevor Hoffman, most relievers tend to have a fairly short shelf-life.
Throughout the course of time the M's have had a few decent relievers, such as Jeff Nelson, Arthur Rhodes, and Norm Charlton to name a few, but if given a choice Kaz Sasaki would be my closer.
Sasaki, like quite a few players here, made a name for himself at a very important time for the Mariners, after arriving in Seattle back in 2000.
Over the course of four seasons with the M's, Sasaki averaged over 30 saves a year while winning Rookie of the Year his first season and making the AL All-Star team the two seasons after.
Not bad, but before you knew it, Sasaki was back in Japan pitching for the Yokohama BayStars.
Such is life with the Mariners, as fame, with the exception of a rare few special players, is truly fleeting.
Could anyone in the current lineup or in the team's farm system some replace anyone on this list?
If you ask me, most of the infield is up for grabs, but whether the likes of Dustin Ackley or Kyle Seager ever emerge as stars remains to be seen. There's also a spot or two in the starting rotation that could be snagged by perhaps a Taijuan Walker or Danny Hultzen some day.
Finally there's a shot that Mike Zunino could grab the catching spot over the course of the next decade if he can continue to build upon his impressive start since joining the organization last summer.
Of course in this household, Dan Wilson always has and forever will be the Mariners best catcher.