Joba Chamberlain is a former professional baseball player who played as a pitcher in Major League Baseball (MLB) for several teams. He was born on September 23, 1985, in Lincoln, Nebraska, and attended the University of Nebraska-Lincoln, where he played college baseball for the Nebraska Cornhuskers.

Chamberlain was drafted by the New York Yankees in the first round of the 2006 MLB draft and made his debut with the team in 2007. He quickly became a sensation, earning the nickname "Joba the Heat" for his powerful fastball. He was a key player in the Yankees' 2007 playoff run, helping the team reach the American League Championship Series.

Over the next few years, Chamberlain continued to pitch for the Yankees, but his performance was inconsistent. He struggled with injuries and was moved between the starting rotation and the bullpen. In 2010, he underwent Tommy John surgery to repair a torn ligament in his elbow, which kept him out of action for most of the season.

Chamberlain returned to the Yankees in 2011 and had a solid season as a reliever, posting a 2.83 ERA in 27 appearances. However, his performance declined in the following years, and he was eventually released by the Yankees in 2013.

After leaving the Yankees, Chamberlain played for several other teams, including the Detroit Tigers, Kansas City Royals, and Cleveland Indians. He continued to struggle with injuries and inconsistency, and his performance never matched the promise he showed early in his career.

Chamberlain retired from baseball in 2019, ending a career that spanned over a decade. He finished with a career record of 25-21 and a 3.81 ERA in 385 appearances. While he never lived up to the hype that surrounded him early in his career, Chamberlain will always be remembered as a talented pitcher who had the potential to be one of the best in the game.