R.A. Dickey is a former professional baseball player who played as a pitcher in Major League Baseball (MLB) for over a decade. He was known for his signature pitch, the knuckleball, which he used to great effect throughout his career.

Dickey began his professional career in 1996 when he was drafted by the Texas Rangers. He spent several years in the minor leagues before making his MLB debut in 2001. However, he struggled to establish himself as a regular starter and was eventually traded to the Seattle Mariners in 2006.

It was during his time with the Mariners that Dickey began to develop his knuckleball pitch. He had always been a conventional pitcher, relying on fastballs and curveballs, but he found that the knuckleball gave him a unique advantage over batters. The pitch is notoriously difficult to control, but Dickey worked tirelessly to master it, and it soon became his go-to weapon on the mound.

Dickey's breakthrough season came in 2010 when he joined the New York Mets. He had been released by the Mariners the previous year and was signed by the Mets as a backup option. However, injuries to other pitchers gave him the opportunity to start regularly, and he seized his chance with both hands. He finished the season with a 2.84 ERA and 11 wins, earning himself a place in the All-Star Game and finishing fifth in the National League Cy Young Award voting.

Dickey's success continued in 2011 and 2012, as he established himself as one of the best pitchers in the league. He won the Cy Young Award in 2012, becoming the first knuckleball pitcher to do so. He finished the season with a 20-6 record and a 2.73 ERA, leading the league in strikeouts and innings pitched.

After leaving the Mets in 2012, Dickey played for several other teams, including the Toronto Blue Jays and the Atlanta Braves. He continued to pitch well, but he never quite reached the heights of his Cy Young-winning season. He retired from baseball in 2017, having played for 15 seasons and amassed over 1,500 strikeouts.

Dickey's career was defined by his mastery of the knuckleball pitch. He was one of the few pitchers in the modern era to rely on the pitch as his primary weapon, and he proved that it could be just as effective as more conventional pitches. He was also known for his work ethic and dedication to his craft, and he inspired many young pitchers to take up the knuckleball themselves.