Versatile Dutch-based defender Sai van Wermeskerken was among 22 named to Japan's under-23 national side for its tour of Portugal starting next week, the Japan Football Association announced on Monday.
Van Wermeskerken, born to a Dutch father and Japanese mother, received his first call-up to Makoto Teguramori's side, which leaves for Lisbon next Monday.
Japan faces London 2012 gold medalist Mexico in a friendly on March 25 before playing Portugal first-division leader Sporting in a training match three days later.