Son sends Spurs into League Cup quarters

Chelsea forced to fight against Lampard’s Derby

Son Heung-min burst out of a 19-game goal drought to help Tottenham into the League Cup quarter-finals, while a pair of early own-goals ruined Frank Lampard’s return to former club Chelsea.

Son scored his first two goals of the season and another of Tottenham’s forgotten men, Fernando Llorente, added one in a 3-1 win over West Ham United in an allPremier League London derby at the Olympic Stadium.

The reward for Tottenham: A last-eight meeting with north London rivals Arsenal at Emirates Stadium in December.

While remaining a star for South Korea, which he led to a gold medal — thereby earning exemption from military service — at the Asian Games in September, Son is no longer guaranteed a first-team place at Tottenham because of fierce competition up front.

Spurs, who were playing just 48 hours after a loss to Manchester City in the Premier League, are looking to claim a first piece of silverware

Spurs are looking to claim a first piece of silverware under Pochettino and end what will be an 11-year wait for a trophy

under Mauricio Pochettino and end what will be an 11-year wait for a trophy.

Lampard, now a manager, returned to Chelsea with his second-tier team Derby County and was trying to take down the club where he is the all-time top scorer with 211 goals after a trophy-laden 13-year spell.

Derby lost 3-2 and was ultimately undone by two owngoals in the opening 21 minutes — the first of which was scored in the fifth minute by a player on loan from Chelsea, Mikayo Tomori. The game almost went to penalties, with Derby striker David Nugent hitting the post in the final minutes.

Lampard spent time on the Stamford Bridge field after final whistle, applauding Chelsea’s fans and getting plenty of cheers in return.