You don't really think of badminton as an overly aggressive sport. But at a tournament in Vancouver on Sunday, things got heated . . . for reasons we don't know . . . and a player ATTACKED one of his opponents.
You can check out the video online. What we DO know is that the two players have a history. They're both from Thailand, and they were TEAMMATES at the 2012 Summer Olympics.
Then in January, one of them announced his retirement . . . which apparently didn't stick.