Ben Davies scored his first goal for Tottenham as the eight-time winners ground out an FA Cup third-round win over a stubborn Aston Villa side.
After a dreadful first-half showing, Spurs improved and the Wales left-back found the breakthrough against their Championship opponents with a deft header.
Son Heung-min then wrapped up the win when he converted Moussa Sissoko's pass to put Mauricio Pochettino's side in Monday's fourth-round draw.
Tottenham have moved into third place in the Premier League on the back of a five-match winning run, but their second string struggled to click against a Villa side set out to frustrate.