The 70-year-old tennis great posted a statement on Facebook a week after he speculated about the skin colour of the baby the pregnant Williams is expecting.
“At the press conference I was asked what opinion I had about Serena being pregnant. I then found out for the first time [she was pregnant] and my reaction was spontaneous,” said Nastase, who is the captain of Romania’s Fed Cup team.
Nastase also said Williams was “one of the greatest players of all times and I know how much work goes into achieving these results.”
Williams is black and her fiance, Alexis Ohanian, is white.
Nastase was also criticised for swearing at British No 1 Konta and captain Anne Keothavong during the Fed Cup match. He said he would not try to “defend my words, but I assure you that behind them was my desire to defend the interests of the Romanian team and Romanian tennis.”
Romania won the best-of-five series 3-2, but Nastase was banned by the International Tennis Federation.
Nastase called tennis not a sport but “my life,” saying his outburst meant “I managed to do what I didn’t imagine was possible, to feel that tennis was slipping away from me.”
“I know that nothing can really excuse my words, nor a high-level match, not the non-conformist attitude I am now known for, not the unfortunate amplification of the situation,” he said. “My life remains dedicated to tennis and its public and I ask you to accept, as much as is possible, my apologies.”
Despite the apology, he also took another shot at Konta.
“I think what happened was exaggerated from all sides. Nonetheless, Johanna Konta should not have spoken with the chair umpire, that’s what the team captain does,” Nastase said. “I asked her in a civilised way for some explanations and she sent me to the tribune where I was removed as captain. After this, the umpire suspended the match. I don’t know why the match was suspended.”
Nastase earned the nickname “Nasty” for his on-court outbursts and gamesmanship in his playing heyday in the 1970s. He won two Grand Slam singles titles and more than 100 ATP titles and is a member of the International Tennis Hall of Fame.