Former Bayer Leverkusen striker Son Heung-min hat-trick as Mauricio Pochettino side Tottenham Hotspur reached the semi-finals of the FA Cup with an easy victory over One Millwall but lost inform forward Harry Kane with an ankle injury.
England forward Kane was replaced after being hurt when Lions centre-back Jake Cooper treid to block his shot after seven minutes.
Denmark midfielder Christian Eriksen, Kane's replacement, opened the scoring with a finish into the bottom corner after Dele Alli's chest down before Son netted either side of half-time.
England playmaker Alli tapped home the fourth with substitute Dutch striker Vincent Janseen adding the fifth-his first from open play for Spurs - before Son completed his hat-trick with virtually the last kick of the match after a mistake by Millwall goalkeeper Tom King.
Tottenham join English Premier League rivals Manchester City and Arsenal in the semi-final draw, which takes place at Stamford Bridge on Monday after the quarter-final clash between Chelsea and holders Manchester United.