Patrick Semansky, Associated Press
Olympic swimmer Michael Phelps, center, watches NFL football training camp with Baltimore Ravens owner Steve Bisciotti, left, and head coach John Harbaugh, Monday, Aug. 3, 2015, in Baltimore.

Michael Phelps will be keeping up with two sets of times this week.

One in Texas, the other from halfway around the world.

When the U.S. championships begin Thursday in San Antonio, Phelps will be the star attraction. He'd rather be somewhere else — the world championships in Kazan, Russia.

The winningest athlete in Olympic history wound up at nationals as part of his punishment for a second drunken driving arrest.

Now, Phelps is eager to see what kind of times he can post in San Antonio, saying he "has not been in this kind of shape in a long, long time. Maybe not ever." He's scheduled to swim in four events: the 100- and 200-meter butterfly, the 200 individual medley, and the 200 breaststroke.