Michael Phelps will officially make his 2016 Olympic debut tonight in the 400 free relay.
We will likely see former Cal teammates Nathan Adrian and Anthony Ervin contest the 400 free relay final tonight for the U.S.
Sebastiaan Verschuren anchored the Dutch 800 free relay to their first European relay title in 17 years.
Louis Croenen will be one of 17 Belgian swimmers heading to the European Championships.
Aimee Willmott moved from seventh to second the world standings with a 3:34.82 to win the 400 IM.