The NBA said Monday it will hold a press conference on Tuesday to make an announcement about its investigation involving Los Angeles Clippers owner Donald Sterling.

Sterling was allegedly secretly recorded by his girlfriend making racist comments in a long-winded conversation made available by multiple outlets over the weekend.

The comments sent a shockwave of reactions throughout the sports world.

CarMax, Virgin America and Kia joined State Farm Insurance in ending sponsorship deals with the team on Monday.

"CarMax finds the statements attributed to the Clippers' owner completely unacceptable," the company said in a statement. "These views directly conflict with CarMax's culture of respect for all individuals. While we have been a proud Clippers sponsor for nine years and support the team, fans and community, these statements necessitate that CarMax end its sponsorship."

Virgin America said in a statement that it was parting with the Clippers "while we continue to support the fans and the players."

State Farm and Kia suspended their sponsorship while details of the inflammatory remarks are further investigated.

Commissioner Adam Silver instructed Sterling to lie low while the NBA investigates the authenticity of the tape recording. The racial remarks made were so powerful that even President Barack Obama responded to them on Sunday during a trip to Malaysia.

Clippers players were told by coach Doc Rivers before Sunday's playoff game against the Golden State Warriors not to comment on the situation. They made a silent protest during warmups about 20 minutes before the opening tip. They circled in the midcourt area of Oracle Arena and threw their Clippers warmup jackets on the ground, exposing team warmup T-shirts that were turned inside-out to hide any reference to the team Sterling owns.

Stars past and present, including Kevin Johnson, called for the "most severe sanction possible" from the NBA and newly appointed commissioner Adam Silver.

Golden State Warriors coach Mark Jackson, who played for Sterling and the Clippers, said the comments would make him reconsider coaching the team next season were he in Rivers' shoes. Rivers is in his first season as Clippers coach.

Jackson told the Dan Patrick Show on Monday that he would support fans boycotting Tuesday's game at Staples Center in Los Angeles to protest Sterling's comments.

Yahoo Sports reported Monday that Magic Johnson is interested in buying the Clippers, but it is not known if Sterling is interested in selling the team.

Johnson was particularly critical of Sterling, saying Sunday he should not be allowed to own the team. Only the NBA's owners can force him to sell.