Will Smith

Smith is one of the most underrated fantasy closers in the league. The only question is whether he ends up getting dealt into a set-up role elsewhere.

One of few uncertain closer situations to quickly gain clarity, Smith has snared full control of San Francisco's ninth-inning duties. After recording a 2.55 ERA and 71 strikeouts in 53 innings last year, the lefty has converted his first four chances. Although a likely midseason trade candidate, he makes a strong top-20 closer for now.

Smith doesn't have much competition for saves at this point, but he hasn't exactly been the most durable reliever. More importantly, he will be a valuable trade chip mid-season as a lefty setup man, so take the saves while you can with Smith, but know they might not stick around all year.