Allen Iverson
Iverson was once one of the NBA’s best guards and spent his prime years with the 76ers. ‘The Answer’ was also one of the game’s top trash-talkers and lit up games with his words. He famously went head-to-head with Kobe Bryant during the 2001 Finals as the Sixers pushed the Lakers to the brink.

Later, Bryant claimed that it didn’t faze him but Iverson was on a one-man mission. His words rattled the Lakers in the first game of the series as Philly took the lead. In the end, it was all for nothing but it made for an entertaining clash. Iverson also destroyed LeBron James during the 2005 All-Star game (via Essentially Sports).