Diallo's injury left National Basketball Association fans horrified.
The rookie shooting guard fell awkwardly to the floor late in the Thunder's game against the Golden State Warriors and had to be removed from the court on a stretcher.
Aside from Diallo's injury, there was positive news for the Thunder, who picked up their fourth win in five games by defeating the Warriors 123-95.
Russell Westbrook recorded his first triple-double of the season with 11 points, 13 assists and 11 rebounds.
The incident capped a turbulent week for Durant, one that saw an angry, late-game exchange with Draymond Green carry into the Warriors locker room last Monday night in Los Angeles. He did score 32 points in the loss to the Mavericks, but missed all four of his three-point attempts.
Golden State led 31-29 in the second quarter before Schroder scored 10 straight Oklahoma City points to ignite a 23-6 spurt that opened a 52-37 lead with 3:53 left in the half.
Adams had 20 points and 11 rebounds, continuing a strong run of recent form in a season where he is putting up the best numbers of his career.
The incident in question occurred with 1:01 remaining in the first quarter of the Warriors' 112-109 loss to the Mavericks on Saturday night, when Durant approached the heckler seated on the baseline and told them point blank, "Watch the fucking game and shut the fuck up".