The U.S. national swimming championships in Irvine next week will get some added star power with
Phelps is scheduled to enter the 100-meter freestyle, 100 butterfly, 100 backstroke and 200 individual medley.
"I feel good," he told the Associated Press. "Just staying relaxed is the biggest thing, not putting too much pressure on myself. I'm just going out and continuing what I've been doing throughout the year -- just having fun."
The most decorated athlete in Olympic history retired after the