Controversial goals from Frank Lampard and Salomon Kalou, who struck in the last minute, kept alive Chelsea's hopes of catching leaders Manchester United. Sandro gave Tottenham the lead when he fired an unstoppable half-volley past Petr Cech from 25 yards on 19 minutes. When Heurelho Gomes spilled Lampard's 45th-minute shot he scrambled back and appeared to stop it from crossing the line, but the goal was given. And Kalou looked offside as he bundled home Didier Drogba's shot late on. Carlo Ancelotti's men will not care one bit about the manner of their goals as the win means they cut United's Premier League lead to three points, with the leaders playing at Arsenal on Sunday. Chelsea and United then come face to face at Old Trafford next weekend in a game that will go a long way to deciding the outcome of the Premier League title. For Tottenham though the result is a devastating blow that all but ends their hopes of catching fourth-placed Manchester City and with that a second-successive place in the Champions League. The first half at Stamford Bridge was pulsating with Chelsea showing their intent by pairing £50m striker Fernando Torres up front with Didier Drogba. Tottenham as ever came to the Bridge with their team set up to attack with Gareth Bale, Luka Modric, Rafael Van der Vaart, Aaron Lennon and Roman Pavlyuchenko all named in the Spurs side. Both sides had early chances, but it was Drogba who came the closest to breaking the deadlock with his powerful 30-yard free kick superbly tipped onto the bar by Gomes. The Brazilian was proving a thorn in the Chelsea side with Tottenham's keeper also saving superbly from Lampard and Essien in a frantic opening to the game. But just as it looked like it was only a matter of time before the hosts opened the scoring, out of nowhere Tottenham took the lead in spectacular fashion. It was scored by Spurs midfielder Sandro, who opened his account for the club, by finding the top right-hand corner of the net with a half-volley from 35-yards that screamed past the helpless dive of Petr Cech. Chelsea came roaring back as the game went from one end to the other and Lampard's cross to Essien was tipped over the bar by Gomes with Torres attempting to head in from the resulting corner when he should have used his foot. Tottenham looked threatening on the break with Branislav Ivanovic booked for a crude challenge on the dangerous Gareth Bale who was lively throughout. Spurs seemed to coping with everything that was thrown at them before Chelsea equalised in fortuitous circumstances. And not for the first time this season keeper Gomes was to blame, with the Brazilian spilling Lampard's 25-yard shot through his legs. Gomes seemed to have scrambled back and stopped the ball from crossing the line, but the assistant referee awarded the goal when even replays proved inconclusive. Tottenham's players complained bitterly to referee Andre Mariner but their protests were in vain as both teams headed into the break level. Gomes was called into action early in the second half as he palmed away Drogba's drive with the Tottenham keeper looking even more nervy. Chelsea dominated the early stages of the second half but struggled to break down resilient Spurs defence and on the hour Torres was replaced by Kalou with the Blues switching to 4-3-3. And Kalou had a glorious chance to give Chelsea the lead but he fired over from close range after Gomes had palmed Drogba's free-kick into his path. Spurs called on Jermain Defoe from the bench and his introduction kicked Spurs into life with John Terry bringing down his England colleague on the edge of the area as he charged through on goal. Chelsea appealed for a penalty moments later after Younes Kaboul appeared to bring down Kalou but replays showed the Spurs defender had in fact played the ball. With time running out Chelsea became increasingly desperate and threw on Nicolas Anelka for Malouda while Lampard went close with a trademark effort from 25-yards that just sailed past the upright. And just as it looked like Tottenham would hold out for a point late on the ball fell to Drogba in the box and although he mis-hit his shot across goal, it found Kalou at the back post and he bundled the ball home. Replays showed that Tottenham were again unfortunate with Kalou standing in a offside position but the goal stood and Spurs left Stamford Bridge with nothing. Source:BBC