Danny Duffy is a left-handed pitcher who played for the Kansas City Royals for the majority of his career. He was drafted by the Royals in the third round of the 2007 MLB draft and made his debut in 2011.

Throughout his career, Duffy was known for his fastball and curveball, which he used to strike out batters. He was also known for his ability to pitch deep into games and his competitiveness on the mound.

Duffy had some ups and downs throughout his career, including injuries and personal struggles off the field. However, he remained a key player for the Royals and was a part of their World Series championship team in 2015.

In 2017, Duffy signed a five-year contract extension with the Royals, solidifying his place on the team. However, he struggled with injuries in the following years and was eventually traded to the Los Angeles Dodgers in 2021.

Overall, Duffy had a successful career as a pitcher, with a career ERA of 3.95 and 1,057 strikeouts. He was a fan favorite in Kansas City and will be remembered for his contributions to the team's success.