Sixto Sánchez Encarnación (born July 29, 1998) is a Dominican professional baseball pitcher who is a free agent.

[4] He made his professional debut as a pitcher that year with the Dominican Summer League Phillies.

[5][6][7] He was 5–0 (tied for 4th in the Gulf Coast League in wins) with an 0.50 ERA, a WHIP of 0.759, and a 5.50 strikeout-to-walk ratio.

[8] Sánchez started 2017 with the Single–A Lakewood BlueClaws, and was promoted to the High–A Clearwater Threshers during the season, with whom he was the youngest pitcher in the Florida State League.

[13][17] On February 7, 2019, Sánchez was traded with Jorge Alfaro, Will Stewart, and $250,000 in international bonus slot money to the Miami Marlins in exchange for J. T.

On October 2, Sánchez made his postseason debut, going for 5 innings, while allowing no earned runs.

[24] On July 5, 2021, Sánchez underwent season-ending surgery after an MRI revealed a small tear in the posterior capsule of his right shoulder.

[28] On March 22, 2024, manager Skip Schumaker announced that Sánchez had made Miami's Opening Day roster.

[31] On November 4, Sánchez was removed from the 40–man roster and sent outright to Jacksonville, but he rejected the assignment and elected free agency.