The Oklahoma City Thunder received grim injury news on Monday, according to the New York Post. General manager Sam Presti said All-Star wing Jalen Williams dislocated his left ankle and fractured his fibula on a drive late in Sunday's game against the Los Angeles Clippers at Paycom Center.

Fourth-year guard Cason Wallace, an All-Defensive selection a year ago, has a torn left labrum. Both players will have surgery and will miss most of the regular season and potentially all of it, the Post reported, citing ESPN. Presti did not give a return date and praised Williams as an elite competitor.

Williams was stretchered off after landing awkwardly between defenders. The blow hits a Thunder team chasing another title after a Western Conference finals loss last season. Wallace was hurt in the first quarter before Williams went down late.

What we know: According to the New York Post, Williams and Wallace both need surgery and face months on the sideline.
What we don't: Only the New York Post has this report among counted outlets so far. NewsHabit hasn't seen independent confirmation. Exact return windows after surgery were not set.