RELIEVERS: BOS, ARI, ATL, CHW, KC, OAK, TAM, SD, PHI

This week, this column looks at the trade that already sent Brad Ziegler (RHP, BOS) from Arizona to Boston, at what to expect if Atlanta trades Arodys Vizcaíno (RHP, ATL) and who might trade for him, a quick look at the White Sox, Royals, A's, Rays, and Padres, and finally, another look at Philadelphia's pen, by popular demand.

In Boston, closer Craig Kimbrel required knee surgery knocking him out for what currently looks like six weeks and the team traded minor leaguers for Arizona closer Brad Ziegler (RHP, BOS). But Ziegler will pitch initially in set-up while former closer, Koji Uehara (RHP, BOS) reclaims his old role:

           
BOS        Sv  IP   DOM  CMD HR/9 xERA BPV Clean/App  LI
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