Rubbing Mud: Luis Castillo Should Use His Slider Against Lefties Matthew Trueblood March 4, 2020 Share: > Image credit: The Enquirer-USA TODAY NETWORK via Imagn Content Services, LLC Subscribe to Baseball ProspectusLuis Castillo was great last year—but this one small trick could make him better and more consistent. Full access to this article is for Premium Baseball Prospectus subscribers. Sign up today to get access to insightful analysis for the discerning baseball fan. Super-Premium - $66.99 / yearPremium - $45.95 / yearPremium Monthly - $6.99 / month Subscribe to Baseball Prospectus In This Article 0 Cincinnati RedsLuis CastilloRubbing Mud Related Articles Old Dog, New Swings B by Matthew Trueblood 12/10 0 The Lutheran Aunt Problem $ by Matthew Trueblood 12/08 4 The Red Sox Share Their Password B by Craig Goldstein and Ginny Searle 12/05 2 TA06: Retrospective Reliever Roundup $ by Patrick Dubuque 12/03 1 Keep ‘Em Guessing $ by Matthew Trueblood 12/01 0 Latest Articles 2026 Prospects: Texas Rangers Top Prospects $ by Grant Schiller and BP Prospect Staff 12/12 4 Around the League in 90 Days: The Diamondbacks $ by Rob Mains 12/12 6 Kyle Schwarber, the Cub That Got Away $ by Bradley Woodrum 12/12 1 What Awaits Us In 2026 B by Mario Delgado Genzor 12/12 0 El año que fue: 2025 en tendencias by Rob Mains 12/12 0 more chevron_rightchevron_right Matthew Trueblood @MATrueblood More about: Cincinnati RedsLuis CastilloRubbing Mud Latest Articles 2026 Prospects: Texas Rangers Top Prospects $ by Grant Schiller and BP Prospect Staff 12/12 4 Around the League in 90 Days: The Diamondbacks $ by Rob Mains 12/12 6 Kyle Schwarber, the Cub That Got Away $ by Bradley Woodrum 12/12 1 Related Articles Old Dog, New Swings B by Matthew Trueblood 12/10 0 The Lutheran Aunt Problem $ by Matthew Trueblood 12/08 4 The Red Sox Share Their Password B by Craig Goldstein and Ginny Searle 12/05 2 You need to be logged in to comment. Login or Subscribe