Cam Johnson's knee injury might be more serious than what the Phoenix Suns hoped.

Shams Charania of The Athletic first reported the Suns feared that Johnson had torn the meniscus in his right knee, and the team announced Sunday that he will undergo surgery and is out indefinitely.

Johnson picked up the injury during Friday's showdown with the Portland Trail Blazers. The 26-year-old exited the game midway through the first quarter with a non-contact injury, and Phoenix eventually ruled him out for the rest of the night.

There are still some uncertainties with regards to Cam Johnson's timetable to return. As Dr. Rajpal Brar said on Twitter, the key factor to determine the length of his recovery is the Suns' plan of care. It includes whether the surgery will be a partial meniscectomy or meniscus repair.

Johnson is a key part of the Suns' offense, so his absence is a huge blow to the team. He is one of the team's best shooters behind Devin Booker, making 2.8 triples on 6.4 attempts for a 43.1 percent shooting. He is averaging 13.0 points, 3.4 rebounds, 1.8 steals and 1.1 assists in eight outings so far for Phoenix.

Here's to hoping that Johnson will still be able to return this season. In the meantime, the Suns will need the likes of Damion Lee, Torrey Craig and Dario Saric to step up and fill the void he left on both offense and defense. It will also be interesting to see if Jae Crowder returns to the team after this injury.