I was just browsing through the Chattanooga roster and I noticed that there are four relievers on that squad who have a legit shot at being serviceable relievers in the major leagues. I wouldn't be surprised to see all four of these guys appear in a game with the Reds this year at some point as long as they continue to pitch well.
Carlos Guevara, RHP - 24 years old, 6'0" 175
10.1 innings, 5 hits, 1 HR, 1 BB, 15 K, 0.59 WHIP, 1.74 ERA
Calvin Medlock, RHP - 23 years old, 5'10" 175
10.2 innings, 4 hits, 0 HR, 7 BB, 7 K, 1.08 WHIP, 1.69 ERA
David Shafer, RHP - 24 years old, 6'3" 185
6 innings, 2 hits, 0 HR, 1 BB, 7 K, 0.50 WHIP, 0.00 ERA
Jon Coutlangus, LHP - 25 years old, 6'1" 180
9 innings, 3 hits, 0 HR, 6 BB, 10 K, 1.00 WHIP, 2.00 ERA