St. Louis Cardinals reliever Trevor Rosenthal has been one of the most prolific middle relievers and set-up men in all of baseball in 2013, which is quite impressive considering the former 22nd round pick is just the ripe age of 23.
Rosenthal has been remarkably consistent all season long. His 3.68 ERA in the month of April, when he got off to a bit of a slow start, is his highest ERA in any month all season long and his .198 batting average against since the All-star break is actually better than the .234 average against he posted in the first half.
Rosenthal’s 100 mph fastball has been a devastating weapon, his change-up has proved to be lethal all season and his very effective curve ball has been used sparingly, but successfully all season long.
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Many have pegged Rosenthal as a future closer, because of his dominating stuff, and that feels like a very likely prediction on the youngster’s future.
But lets not forget, that just this spring training, Rosenthal was...