Son Heung-min scored his first Premier League goal to earn Tottenham a 1-0 win over Crystal Palace at White Hart Lane.
The South Korea international followed on from his Europa League double against Qarabag in midweek with the winning strike on Sunday, handing Tottenham the bragging rights in a closely fought London derby.
Mauricio Pochettino's side have now won back-to-back top-flight games and three in a row in all competitions, alleviating some of the early-season pressure that was beginning to build after a below-par start.
It was just reward for the hosts, who had the better of things but were pushed hard by Alan Pardew's side, who have lost consecutive matches since stunning champions Chelsea at Stamford Bridge last month.
Tottenham started the game positively and called Alex McCarthy into action frequently, but the goalkeeper was equal to everything thrown at him.
Palace threatened on the break and hit the post on the brink of half-time through Yohan Cabaye, while Bakary Sako was also denied by the woodwork following an impressive save from Hugo Lloris.
That set the stage for Son, a big-money buy from Bayer Leverkusen, to net the winner 22 minutes from time and help Tottenham climb to ninth.
Erik Lamela came into the Tottenham side for the injured Ryan Mason, who scored the winner in last weekend's victory over Sunderland, while Damien Delaney replaced the sidelined Scott Dann for Crystal Palace.
Alan Pardew's men still offered a threat on the break, with Sako seeing his free-kick from 20 yards kept out of the top corner by a leaping Lloris.
Tottenham thought they had taken the lead close to the hour mark, but Kane was adjudged to have interfered with play from an offside position before Davies nodded home on the rebound following a shot from Son.
Palace were denied the opener by the woodwork once again in the 65th minute, but it took an astonishing save from Lloris to divert Sako's cross-goal effort onto the post.
