https://www.mercurynews.com/2019/06/10/kevin-durant-has-achilles-injury-warriors-president-bob-myers-says/

The injury Kevin Durant suffered in Game 5 of the NBA Finals Monday night was not a re-aggravation of his prior calf injury.

It was an injury to his right Achilles tendon, Warriors president of basketball Bob Myers said in a press conference after Golden State’s 106-105 win.