Japan's Olympic-bound women's national basketball team has entered its second training camp in Tokyo, with Phoenix Suns assistant Corey Gaines as a guest coach.

Gaines, a former guard for four NBA teams as well as the now-defunct Japan Energy Griffins, is expected to teach Team Japan some fast-tempo transition schemes as it prepares for the Rio de Janeiro Games.

Gaines was active from the first day of training camp on Monday, moving around the floor in constant conversation with Tomohide Utsumi, the team's head coach, and Tom Hovasse, Utsumi's assistant.