Juan Nicasio is a former professional baseball player who played as a pitcher in Major League Baseball (MLB) for several teams. He was born on August 31, 1986, in San Francisco de Macoris, Dominican Republic. Nicasio began his professional baseball career in 2006 when he signed with the Colorado Rockies as an international free agent.

Nicasio made his MLB debut on May 28, 2011, for the Colorado Rockies. He played for the Rockies from 2011 to 2014, where he had a record of 21-22 with an ERA of 5.03. During his time with the Rockies, Nicasio suffered a severe injury when he was hit in the head by a line drive in August 2011. He suffered a fractured skull and underwent surgery to insert a metal plate in his head. However, he made a remarkable recovery and returned to the field the following year.

In 2015, Nicasio signed with the Los Angeles Dodgers, where he played for one season. He had a record of 1-3 with an ERA of 3.86 in 52 games. In 2016, he signed with the Pittsburgh Pirates, where he played for two seasons. He had a record of 18-16 with an ERA of 4.75 in 67 games. In 2018, Nicasio signed with the Seattle Mariners, where he played for one season. He had a record of 1-6 with an ERA of 6.00 in 46 games.

In 2019, Nicasio signed with the Philadelphia Phillies, where he played for one season. He had a record of 2-3 with an ERA of 4.75 in 47 games. In 2020, Nicasio signed with the Texas Rangers, where he played for one season. He had a record of 1-0 with an ERA of 3.86 in 15 games.

Throughout his career, Nicasio was known for his fastball, which could reach up to 98 miles per hour. He also had a slider and a changeup in his pitching arsenal. Nicasio was a versatile pitcher who could pitch in various roles, including as a starter, long reliever, and setup man.

In conclusion, Juan Nicasio had a successful career as a professional baseball player, playing for several teams in the MLB. He had a record of 44-52 with an ERA of 4.64 in 407 games. Despite suffering a severe injury early in his career, Nicasio made a remarkable recovery and continued to play at a high level. He was known for his versatility as a pitcher and his ability to pitch in various roles.