UFC Fight Night 153 is done and dusted, and so is the career of Sweden’s most impactful mixed martial artist. After a back-and-forth main event that saw Anthony Smith defy the oddsmakers yet again to take out former three-time title challenger Alexander Gustafsson via fourth-round submission on Saturday in Stockholm, “The Mauler” left his gloves in the Octagon and confirmed at the post-fight press conference that his fighting days were done. By contrast, Smith has now solidified himself as a Top 3 light heavyweight and looks to have placed himself within striking distance of a second shot at the 205-pound crown.