Duran (hamstring) threw live batting practice Sunday, Dan Hayes of The Athletic reports.
Duran pulled out of consideration for the World Baseball Classic after he suffered a mild hamstring injury in January, but he's recently been throwing bullpen sessions and is now facing live batters. The 24-year-old was dominant as a rookie last year and recorded eight saves and 18 holds with a 1.86 ERA, 0.98 WHIP and 89:16 K:BB over 67.2 innings. Duran is likely the Twins' best reliever, but he could open the season splitting save chances with Jorge Lopez.