No — Patrick Mahomes Sr. is not left-handed; he was a right-handed pitcher during his professional baseball career.

Patrick Mahomes Sr. is a former American professional baseball player who pitched in Major League Baseball (MLB) for 11 seasons. He played for several teams, including the Minnesota Twins, Boston Red Sox, New York Mets, and Texas Rangers. Known for his powerful right arm, he was primarily a relief pitcher.

Drafted by the Minnesota Twins in 1988, Mahomes Sr. made his MLB debut in 1992. He also played professionally in Japan for the Yokohama BayStars and in independent leagues. His career spanned from the early 1990s into the early 2000s, showcasing remarkable longevity in professional baseball.

He is the father of Patrick Mahomes II, the acclaimed quarterback for the Kansas City Chiefs of the NFL. Mahomes Sr. often attends his son's games and is a supportive figure in his career, frequently seen at high-profile NFL events.

After retiring from baseball, Mahomes Sr. has remained connected to sports, often providing insights and commentary on his son's career and the world of professional athletics. He is a well-recognized figure in both baseball and football circles.