The Dutch men's doubles team has withdrawn from the Tokyo Games after one of the pair, Jean-Julien Rojer, tested positive for COVID-19, the International Tennis Federation (ITF) said.

Rojer is the first tennis player and the sixth member of the Dutch Olympic delegation to test positive so far. The others include a skateboarder, a taekwondo player, a rower and two staff of the rowing team.

Rojer and his partner Wesley Koolhof, who were scheduled to play in the second round on Monday afternoon, have been placed in isolation, the ITF said.

Their opponents, Marcus Daniell and Michael Venus of New Zealand, will receive a walkover into the quarter-finals. 

The number of confirmed COVID-19 cases in the Dutch delegation thus swelled to six.

Earlier, the organisers, in their daily COVID-19 update, announced that three athletes, four contractors, eight Games-concerned personnel and one Games employee have been found to be COVID positive, taking the number to 148.

All the three athletes are not residents of the Olympic Village, which has reported 16 cases since it was opened.

One Games-connected personnel and a contractor are residents of Japan in the fresh additions.

The three athletes and seven Games-concerned personnel have been put under the mandatory 14-day quarantine.

The total number of Games-concerned personnel to have tested positive so far stood at 83 after the addition of 8 new cases.