Colorado Springs - Michael Phelps, the most decorated Olympian in history, will not be taking part in the FINA world championships in Kazan in August nor in the Pan-American Games in Toronto in July.
"He is not a member of the 2015 world championships team, per the mutual decision of his withdrawal from the team last October," a spokesman for US Swimming has said on Wednesday.
US Swimming executive director Chuck Wielgus had opened the door to a change of mind last month, when he said that while Phelps's readmission would be complicated, "there are ways in which it could happen."
He is also set to miss this year's Pan-American Games.
"The team for Team USA at the Pan-Am Games in Toronto is set and he is not on that team," the US Swimming spokesman said.
Phelps, 29, who has won 18 Olympic gold medals in his career, was suspended by US Swimming for six months after being arrested for drink-driving and speeding in September last year.
The suspension will expire Monday.