Fien, a 25-year-old hurler from Santa Rosa, CA, excelled at Toledo.
In 47.1 innings, he punched out 51 batters, while walking just 13. He also led the Mud Hens in saves with eight.
But success is not unique to this season for Fien.
He has impressed at every level since he was selected in the 20th round of the 2006 draft.
With Single-A West Michigan in 2007, Fien appeared in 39 games, striking out 77 in 61 innings.
He split the following season between Double-A Erie and Toledo. Fien found rapid advancement to Toledo after he put up a 2.96 earned run average in 45.2 innings with the SeaWolves. Post-promotion, he tossed 15 more innings, surrendering just four runs.
Fien's minor league track record is very impressive: 211.2 innings, 47 walks, 224 strikeouts, 3.07 earned run average.
Joel Zumaya's most recent injury left a glaring need for another reliable righty.
If he flourishes in his first go-around with the Tigers, he will surely figure into the Tigers' long-term plans.