On May 6, Philadelphia Phillies starting pitcher Cole Hamels delivered what he called a purpose pitch right into the back of Washington Nationals prized prospect Bryce Harper, and then foolishly admitted after the game that the pitch was indeed intentional.
"I was trying to hit him. I'm not going to deny it," Hamels told reporters after the game.
Hamels' "honesty" earned him a five-game suspension and much criticism from players, managers and analysts alike.
On Wednesday night, the Phillies face the Nats with Hamels on the mound. With the game nationally televised on ESPN, it promises to be a spirited affair.
While everyone will be watching the Hamels-Harper duel, it might be interesting to see Hamels batting against Nationals starter Edwin Jackson as well. After Hamels' foolish admission of guilt, Jackson may deliver a little payback of his own.
The expected matchup between Hamels and Harper isn't the only heated matchup worth watching, however. There have been several incidents within the last year or so that warrant close observation as well.
Here are 10 heated pitcher-hitter rivalries worth watching in the future.