Jurgen Grobler: GB men's coach keen to rebuild towards Tokyo 2020 Olympics
Chief men's coach Jurgen Grobler says new faces must be given a chance to break into Great Britain's rowing team ahead of the Tokyo Olympics in 2020.
Grobler guided the men's eight and four to gold medals in Rio after making a series of changes to the crews in the preceding 12 months.
"Some athletes will retire in the next two and a half years and we have to replace them," Grobler told BBC Sport.
"We have to give some new guys a chance and I hope it will be a challenge."
Speaking to BBC Radio Berkshire, Grobler added: "It may be two and a half years until qualification for Tokyo. But we have to have a new Olympic team put together."
Grobler pointed to performances in the ongoing under-23 World Championships in Rotterdam as a source of encouragement ahead of the 2020 Games.
"That will give us a chance to see how things are working," he said.