Steve Williams will be part of a four

"Duisburg is an excellent chance to try some new combinations in early season and for an early workout for our seasoned campaigners," said Amateur Rowing Association international manager David Tanner.

Toby Garbett and Steve Williams will join Rick Dunn and Josh West in a coxless four, as Ed Coode continues to recover from a shoulder injury.

Simon Cottle will hope to repeat his success in the single scull in Cologne after being selected for Duisburg ahead of world junior champion Matt Langridge.

Frances Houghton takes part in the women's single scull after winning the trials a month ago.

Veteran Olympian Tom Kay returns to the squad to race with Tim Male in the lightweight men's double scull.

In the equivalent women's boat, Tracy Langlands replaces Jane Hall to race with Helen Casey.

The men's eight will not race in Duisburg having entered a sustained period of training before the World Cup.

Britain has also entered an Under-23 squad for the event in preparation for the U23 world championships in Genoa in July.