Israel's squad has returned from the European Swimming Championships in London with two silver medals.
Yakov Toumarkin finished runner-up in the 200m backstroke. He touched home in 1: 56.97 and narrowly missed out on another medal, finishing fourth in the 100m backstroke.
Toumarkin has returned to form in time for the Olympics, having only previously won major medals at the Euros in Hungary four years ago.
"This gives me great strength and confidence ahead of Rio,” he said. “I'm also encouraged by the fact that I stood on the podium after recording a time just short of my record."