Harry Kane's penalty was enough for Tottenham Hotspur to move three points clear of third-placed Arsenal in a 1-0 win over Middlesbrough at White Hart Lane.
Spurs dominated with Victor Valdes in the Middlesbrough goal denying Son Heung-min and Christian Eriksen early on.
Dele Alli drove into the side-netting and Toby Alderweireld struck a post, while Kane also headed over with the goal at his mercy.
Kane made amends with his 58th-minute spot-kick, coming after Son had been fouled by Bernardo.
Middlesbrough threatened late on, with Marten De Roon firing their best chance wide.
Their first win in three PL matches takes Spurs nine points behind leaders Chelsea, while Boro lie 15th, a point above the drop zone.
Man of the Match: Son Heung-min