| Date | Status | Player | Prognosis | Injury | Target Return? |
|---|
| 2018-07-19 | Out | Michael Porter Jr. | Porter underwent his second back surgery according to Steve Aschburner of NBA.com | Back | |
| 2018-06-30 | Out | Lonzo Ball | Ball will undergo arthroscopic surgery on his left knee, but he's expected to be ready for the start of the regular season, according to Sam Amick of NBA Insider. | Knee | |
| 2018-05-18 | Out | Robert Covington | The 76ers announced that Covington had surgery to repair the extensor tendon in his left middle finger. He will be re-evaluated in a few weeks. | Finger | |
| 2018-05-10 | Out | Paul George | George had surgery on his knee and is expected to return to basketball activities in 6-8 weeks, according to Marc J. Spears of TheUndefeated.com. | Knee | |
| 2018-04-27 | Out | Otto Porter Jr. | The Wizards announced that Porter had a procedure done to address the buildup of blood flow in the area of a contusion of his leg. He's out indefinitely. | Leg | |
| 2018-04-26 | Out | Mason Plumlee | Plumlee had surgery to repair a core muscle, according to Harrison Wind of BSNDenver.com. The expectation is that he will be ready by training camp. | Core Muscle | |
| 2018-04-25 | Out | Bogdan Bogdanovic | The Kings announced that Bogdanovic had surgery on his left knee. He's expected to resume full basketball activities in 8-10 weeks. | Knee | |
| 2018-04-20 | Out | John Henson | Henson is listed as out for Game Seven on Saturday (Apr. 28) against the Celtics, according to head coach Joe Prunty. | Back Soreness | |
| 2018-04-19 | Out | Justin Patton | Jon Krawczynski of The Athletic Minnesota reports, Timberwolves coach Tom Thibodeau said Patton will miss most of the fall recovering from foot surgery. | Foot | |
| 2018-04-03 | Out | Denzel Valentine | The Bulls announced G Denzel Valentine will undergo surgery on his left knee and he'll miss the rest of the season. | Knee | 2018-08-08 |
| 2018-03-11 | Out | Daniel Theis | The Celtics announced that Theis suffered a torn meniscus and is likely out for the rest of the season. | Knee | |
| 2018-03-11 | Out | Kyrie Irving | The Celtics announced that Irving underwent a procedure on Saturday (Apr. 7) to remove a couple of screws from his left patella from an injury he suffered in 2015. He's expected to take 4-5 months to recover. | Knee | |
| 2018-02-06 | Out | Kristaps Porzingis | The Knicks announced Porzingis had successful surgery Tuesday (Feb 13) to repair a torn ACL in his left knee. | Knee | 2018-08-02 |
| 2018-01-30 | Out | Dion Waiters | Waiters had surgery in his left ankle in January, and the team is unsure if he will be ready for training camp, according to Ira Winderman of the South Florida Sun-Sentinel. | Ankle | |
| 2018-01-28 | Out | Andre Roberson | Roberson had arthroscopic surgery on his left knee, according to Royce Young of ESPN. | Hernia/Knee | 2018-08-02 |
| 2018-01-17 | Out | Thabo Sefolosha | Sefolosha is making progress, but is still at least another month or so away from returning to normal summer training, according to Ben Dowsett of The Athletic. The expectation is that he's healthy and ready for the start of the 2018-2019 season. | Knee | |
| 2017-10-17 | Out | Alexis Ajinca | The Pelicans announced Ajinca will be out for 4-to-6 months following successful surgery on his left patellar tendon. | Knee | 2018-08-08 |
| 2017-10-17 | Out | Gordon Hayward | Heyward had a ankle procedure where the screws were removed from his broken fibula. He's expected to resume basketball activities in 6-8 weeks, according to Gary Washburn of The Boston Globe. | Foot | |
| 2017-10-09 | Out | Harry Giles III | The Kings announced Giles is on track with his rehabilitation but they would prefer to have him focus on his individual rehab with a goal of being ready for the 2018 Las Vegas Summer League. | Knee | 2018-08-02 |
| 2017-09-01 | Out | Frank Jackson | Jackson is expected to be ready to play in the Summer League with the team, according to Will Guillory of the New Orleans Times-Picayune. | Foot | 2018-08-01 |
.