LONDON  - Japan stayed on course for an Olympic football double as their men's team joined the women's side in reaching the tournament semi-finals following a 3-0 win over 10-man Egypt on Saturday.

Goals from Kensuke Nagai, captain Maya Yoshida and Yuki Otsu took Japan through against an Egypt side who played more than half the match a man down after defender Saadeldin Saad was sent off in the 41st minute for denying Japan forward Manabu Saito a goal-scoring opportunity.

Nagai gave Japan a 14th-minute lead, shooting into an empty net after Egypt goalkeeper Ahmed El Shenawi collided with one of his own defenders in trying to deal with a through ball. Egypt, despite being down to 10 men, came close to an equaliser when Mohamed El Neny's dipping shot was well-saved by Japan keeper Shuichi Gonda. However, shortly afterwards, Japan put the result beyond doubt with two goals in the space of five minutes. Japan will play Mexico in the semi-finals after the Central Americans survived a dramatic fightback by Senegal to win 4-2. Senegal came from 2-0 behind at London's Wembley Stadium, in front of a crowd of more than 81,000 to force extra-time.