Kristaps Porziis struggled to get back out on the court after initially making his Warriors debut on Feb. 19. And it wasn’t until Golden State coach Steve Kerr walked back comments that he described as a “stupid mistake” where the situation became even more mysterious. After his debut against the Boston Celtics, Porziis was sidelined for six games with an unspecified illness that Kerr, in a radio interview with 95.7 The Game on Feb. 27, stated, based on a conversation he had with Atlanta Hawks general manager Onsi Saleh, was not POTS, or postural orthostatic tachycardia syndrome.The following day, before the Warriors’ game against the Los Angeles Lakers, Kerr shared his regret for even speaking about Porziis’s illness. “It was a stupid mistake by me to talk about something that I’m not qualified to talk about, so I regret it,” Kerr told reporters on Feb. 28. “Even trying to discuss the diagnosis, that was my mistake and I need to leave that to the professionals.”Porziis returned to the lineup on Saturday, and after missing Monday’s game against the Utah Jazz, will play on Tuesday against the Chicago Bulls at Chase...