Slaten missed the last 77 games because of left elbow ulnar neuritis. Before the injury, Slaten, 31, was 0-1 with a 2.19 ERA in 23 games, but he had problems throwing breaking pitches.
Slaten rested the elbow, had treatment on it and began a throwing program. Once the elbow was healthy, Slaten had four rehab starts, posting a combined 1.74 ERA with 11 strikeouts in 10 1/3 innings for the Gulf Coast Nationals, Class A Hagerstown, Double-A Harrisburg and Triple-A Syracuse.
Now that he is back in the fold, Slaten most likely will be a left-handed specialist out of the bullpen.
"It's always good to be back," Slaten said. "As far as how long it took, I really didn't know how long it would take. I just go where I go."