Heading into the 2016 campaign, Oh was a 33-year-old rookie and St. Louis' oldest reliever. He'd been a fantastic player in Korea, but there were still questions about how his game would translate to the MLB. It didn't take long for Oh to put any doubts to rest, as he held a 1.59 ERA and .159 opponent batting average heading into the All-Star break. By the end of the year, Oh stood as the fantasy darling of the Cardinals' bullpen and had put together a 1.92 ERA, 0.92 WHIP, and 32.9 percent strikeout rate while walking less than six percent of the batters he faced. With a fastball that averages 92.8 mph, Oh doesn't overwhelm batters with power and frequently relies on his slider, which he uses over 31 percent of the time. Looking at 2017, Oh will begin the season as the Cards' closer and likely command a top-10 closer price at the draft table.