The seventh Duel in the Pool, a Ryder cup-style swimming competition pitting the U.S. against European all-stars, will be held in Indianapolis from Dec. 11-12.
The Duel in the Pool has been held in odd-numbered years since 2003. The first three editions were U.S.-Australia battles. The last three were U.S. vs. Europe.
The U.S. won all six previous Duels in the Pool. The first five were taken comfortably, but the most recent, in December 2013, came down to a tiebreaker mixed medley relay. That edition, in Glasgow, marked the last time Katie Ledecky looked human in a pool. She made the podium once, a second place, while feeling under the weather.
The U.S. and European rosters will be announced in early October, according to USA Swimming.
In 2013, the meet included Ledecky but not Missy Franklin or Ryan Lochte. Franklin and Lochte last competed in 2011. Michael Phelps last competed in 2009.
NBC will broadcast the Duel in the Pool on Dec. 19.