* Tottenham rout Bournemouth 4-0 to seal seventh consecutive win
* Dembele opened the scoring with close-range shot
* Son made it 2-0 three minutes later
* Kane scored his 20th league goal of season to make it 3-0
* Substitute Janssen made it 4-0 in stoppage time
* Tottenham at Crystal Palace next, Bournemouth host Middlesbrough
April 15 (Reuters) - Tottenham Hotspur claimed a 12th consecutive Premier League home win with a 4-0 rout of Bournemouth on Saturday to keep the pressure on leaders Chelsea.
Two goals in three minutes from Mousa Dembele and Son Heung-min put the hosts in complete control inside 20 minutes and Harry Kane grabbed his 20th league goal of the season shortly after halftime as Spurs cut Chelsea’s lead to four points.
Chelsea travel to Manchester United on Sunday.
Dembele struck after 16 minutes, slamming in a shot from six metres after Christian Eriksen’s corner reached him at the far post through a crowd of players.
Son fired through the legs of keeper Artur Boruc after racing into the area from Kane’s flick.
Kane, starting for the first time since injuring his ankle last month, wrapped up Tottenham’s seventh successive league win after 48 minutes, turning Simon Francis all too easily and firing low past Boruc.
It is the third season in a row England forward Kane has reached the 20-goal mark - a feat previously only achieved by Alan Shearer, Ruud van Nistlerooy and Thierry Henry.
Substitute Vincent Janssen rounded off the action with a fourth goal in stoppage time, the Dutchman’s first Premier League strike from open play since joining last year.
Bournemouth are seven points above the relegation zone before the later kickoffs and probably need one more victory to guarantee a third season of top-flight football. (Reporting by Martyn Herman, editing by Ed Osmond)