The Dallas Mavericks signed undrafted free agent J.J. Barea in 2006. Nobody expected him to play 14 seasons in the NBA or help the Mavericks win a championship, but Barea did just that. He transformed himself into one of the best backup point guards and an unstoppable pick and roll ball handler.
Barea has given Mavs fans so many memorable moments too. Topping the list is likely his 2011 playoff run. He came up with aces often including in the final two games to close out the Heat and bring the championship back to Dallas.