Phil Niekro, American baseball player and manager
Philip Henry Niekro ( NEE-kroh; April 1, 1939 – December 26, 2020), nicknamed "Knucksie", was an American baseball pitcher who played 24 seasons in Major League Baseball, 20 of them with the Milwaukee / Atlanta Braves. Niekro's 318 career victories are the most by a knuckleballer and rank 16th on MLB's all-time wins list. He won the National League Gold Glove Award five times, was selected to five All-Star teams, and led the league in victories twice and earned run average once. He was a key contributor to the Braves winning their only two division titles before 1991. Niekro was inducted into the Baseball Hall of Fame in 1997.

Niekro and his younger brother Joe amassed 539 wins between them, the most combined wins by brothers in baseball history. Phil's 121 career victories after the age of 40 is a major league record. His longevity is attributed to his knuckleball, which is a difficult pitch to master but is easy on the arm and often baffles hitters due to its unpredictable trajectory.

Niekro remains the last MLB pitcher to win and lose 20 games in the same season. With the 1979 Braves, he was 21–20. It was his third and final 20-win season and his second and final 20-loss season. That season, Phil and Joe Niekro were NL co-leaders in wins.