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One of the best first quarters of the Phoenix Suns' season came to a horrific end Wednesday night against the Mavericks.

With 2.9 seconds remaining in the quarter and the Suns leading 35-17, guard Isaiah Canaan landed awkwardly after jumping for a layup, and it was immediately clear that he had suffered a terrible injury to his left leg. Given the gruesome nature, we won't show the video of the injury here, but it should be readily available with a quick Twitter search if you're curious.

The Suns quickly diagnosed Canaan's injury as a left ankle fracture. It was eerily similar to the one Celtics forward Gordon Hayward suffered on the opening night of the NBA season, though Hayward's was diagnosed as a dislocated left ankle and tibia fracture.

Canaan was signed by the Suns in mid-December and is averaging 9.4 points and 4.2 assists mostly in a backup role with Phoenix. The 6-foot guard is in his fifth NBA season, and has averaged 8.9 points and 3.9 assists for his career with the Rockets, 76ers, Bulls and Suns.