Injury Notes: J. Johnson, Robinson, Suggs, Tatum, Luka, Kawhi

There’s optimism that injured Hawks forward Jalen Johnson could be back in action as soon as Tuesday vs. Chicago, sources tell Adrian Wojnarowski of ESPN.

Johnson was in the midst of a breakout season before suffering a left distal radius fracture on November 25. In his 14 healthy games this year, the 22-year-old averaged 14.6 points, 7.7 rebounds, and 2.5 assists in 31.4 minutes per night, with a .590/.421/.774 shooting line.

As Wojnarowski details, the Hawks’ performance, especially on defense, has nosedived since Johnson injured his wrist. The team is just 4-9 and ranks 29th in defensive efficiency without him. At 12-16, Atlanta in the mix for a play-in spot and currently sits percentage points behind Chicago for the No. 10 spot in the East.

Here are a few more injury updates from around the NBA:

• Knicks head coach Tom Thibodeau said on Friday that the eight-to-10 week timeline to reevaluate Mitchell Robinson‘s ankle injury remains unchanged and wouldn’t confirm that the team expects the center to miss the rest of the season. However, Thibodeau also didn’t deny that Robinson will be out for the year, simply stating that the club will know more once he’s reevaluated in February.
• Still without starting point guard Markelle Fultz, the Magic are down another starting guard. Jalen Suggs, who is battling a sprained left wrist, missed Thursday’s game in Milwaukee and has been ruled out for Saturday’s contest in Indiana, tweets Jason Beede of The Orlando Sentinel. Gary Harris will get a second consecutive start tonight in place of Suggs, who said on Thursday that he doesn’t anticipate missing much time with the injury, per Beede.
• A pair of All-Stars are back in action today after a one-game absence. Jayson Tatum (left ankle sprain) is available for the Celtics, per Gary Washburn of The Boston Globe (Twitter link), while Luka Doncic (left quad strain) is no longer on the injury report for the Mavericks, according to Brad Townsend of The Dallas Morning News.
• Clippers forward Kawhi Leonard (left hip contusion), on the other hand, is missing a second consecutive game on Saturday vs. Boston (Twitter link via Andrew Greif of The Los Angeles Times).