Boston Celtics star Kemba Walker is feeling good after making his bubble debut on Sunday against the Phoenix Suns.

Since arriving in Orlando, Walker has been limited in practice due to a nagging left knee injury he suffered in February. However, in a video conference with media members on Sunday, he said he felt good and is looking to take steps forward. The Celtics All-Star point guard finished off with six points in nine minutes in Sunday's scrimmage.

It was also Walker's first time playing with no fans in attendance, so he had a few words to say about playing in that environment.

“It was my first game without fans, so it was a bit weird,” the Celtics star said, per Yahoo Sports' Keith Smith. “Most guys said they didn't notice it today vs the first game. You mostly notice it when guys are shooting free throws and it gets so quiet.”

Kemba Walker has played phenomenal in his first season with the Celtics. The 30-year-old was 21.2 points, 4.1 rebounds and 4.9 assist in 50 games prior to the hiatus of the 2019-20 campaign. Additionally, he was shooting 42.1 percent from the field and 37.7 percent from 3-point range.

The Celtics will certainly need Kemba to be 100 percent before the playoffs start in August. They're currently third in the Eastern Conference, three games behind the team in second seed, the Toronto Raptors.

Boston one more scrimmage game on Tuesday against the Houston Rockets, and then they'll play the Milwaukee Bucks for their first game of the NBA restart on Friday.