Twins' Tyler Duffey: Continues recent turnaround

Duffey allowed no runs with no hits or walks while striking out four over 1.2 innings Thursday against the Guardians, and the addition of a changeup to his arsenal has contributed to his recent improvement, the St. Paul Pioneer Press reports.

Duffey has thrown nine scoreless innings over his last six appearances with a 8:2 K:BB. It's a stark turnaround after he began the season with a 6.38 ERA and 24:8 K:BB in his first 24 innings, a rough stretch that saw him relegated to low-leverage opportunities. Duffey has switched his pitch mix, relying less on a high fastball and using the changeup more frequently. He could return to a key setup role if he continues performing well.