Hendricks is working with new Cubs pitching coach Jim Hickey to fine-tune his curveball during spring training, Carrie Muskat of MLB.com reports.
For his career, Hendricks has used the curve just under eight percent of the time, so it's not something hitters see that much of. The righty has instead mainly relied on a fastball-changeup combo. Perhaps Hendricks will use the pitch more this season if he becomes more comfortable with it during the spring.