Los Angeles Clippers forward Blake Griffin decided to pass on playing the U.S. national team at the FIBA World Cup of basketball in August and Washington Wizards guard John Wall reportedly was added to the roster.

Griffin, one of 19 players originally selected, said Thursday that he wants to focus on the 2014-15 NBA season.

"I appreciate the invitation to play for Team USA this summer," Griffin said in a statement. "It is a special opportunity anytime you have a chance to represent your country, and I was honored to be included. However, right now I want to focus and dedicate 100 percent of my energy on improving and preparing for the upcoming season with the Clippers."

Wall is a late edition to the team before training camp opens Monday in Las Vegas. He was not among the players listed on the roster that was released several weeks ago by USA Basketball.

"It's unfortunate -- it's been two competitions in a row (Griffin has missed), but it sounds like a broken record because it happened recently with someone else," said Team USA managing director Jerry Colangelo to USA Today.

Portland Trail Blazers forward LaMarcus Aldridge also unexpectedly retreated from participating.

Wall averaged 19.3 points and 8.8 assists per game this past season, helping the Wizards reach the NBA playoffs.

Griffin averaged 21.4 points and 9.5 rebounds per game for the Clippers in 2013-14, but played a total of 93 games, including the postseason.