The mood was celebratory as Griner, who was released from a Russian penal colony in a high-profile prisoner exchange with the US late last year, was embraced by Harris on the court before the game.

Griner looked emotional when she was introduced and despite her Phoenix Mercury being the visiting team, saw the crowd erupt when she hit a 17-foot jumper on her first attempt of the contest.

"It felt good, it felt real good," Griner said of making the shot after missing all of last season while detained in Russia.

"If felt like the last time I played."

"The love from the fans who came out was amazing," she told reporters after the game.

"I definitely feel it, and I felt it while I was over there too."

Outside the arena, Nike billboards displayed a photo of Griner with the caption "Basketball is Home".

Griner was taken into custody at Moscow's Sheremetyevo airport and subsequently convicted of narcotics possession and trafficking after she was found to have been carrying vape cartridges containing hashish oil in her luggage.

She said she was prescribed medical cannabis in the United States for a chronic injury and never intended to break the law. US officials said she was wrongly detained and was being used as a political pawn amid increasingly strained relations with Moscow.

"I appreciate everything a little bit more now," Griner said.

"All the little, small moments. I used to say, oh I'm so tired, I don't want to go to practice today. I think that has changed.

"I'm just appreciating everything because tomorrow is not guaranteed. You don't know what it's going to look like."

Griner kicked off her 10th season with the Mercury on Friday after playing in a pre-season game one week ago.

Tennis Hall of Famer Billie Jean King and Lakers legend Magic Johnson were among others on hand for the game, which the Sparks won 94-71.