The return of 2020 NBA Draft pick two James Wiseman has been delayed again following more swelling in his right knee.

The 20-year-old center has not played all season for the 47-23 Golden State Warriors due to injury.

Wiseman had returned to action via the G League last week but was held out of practice on Friday and Saturday, with Warriors head coach Steve Kerr revealing a setback.

"We will take a pause and see how the knee responds from there," Kerr told reporters.

The Warriors only have 12 regular-season games prior to the playoffs but will not put a line through Wiseman's season yet, although they are unwilling to offer a timeframe on his return.

"We can't make a decision based on the schedule," Kerr said. "We can't make decisions based on the playoffs. Every decision should be made around James' career and his future."

He added: "I feel terrible for James. I will just keep going back to the fact that he's 20 years old. He's got his whole future ahead. We just have to be really, really cautious. We have to do what is best for him long term."