Liverpool left it late in a disjointed performance but took all three points at Anfield to keep the title hopes alive.
A first half Roberto Firmino goal was cancelled out in the second half by Lucas Moura, before Mo Salah popped up in the final minutes to force Alderweireld to put the ball in his own net.
Tried and tested midfield
Jurgen Klopp elected for his tried and tested midfield - Henderson, Milner and Wijnaldum. Trent Alexander-Arnold started after getting over the back injury that kept him away from England duty. Xherdan Shaqiri was named on the bench, as was Dejan Lovren. It meant that Joel Matip maintained his place at centre-back partnering Virgil van Dijk.
It was a good battle in the first half between two of the Premier League's most exciting sides, but arguably Spurs looked the more determined of the two. The reds were boosted by the early signs that Bobby Firmino is now well and truly over his recent injury niggle, and he deserved to bag the opening goal.
Andy Robertson lifting a delightful ball over into the centre of the area and Firmino finding the space to head past Spurs' captain Hugo Lloris.
Trent Alexander Arnold had plenty of opportunities from corners. He hit the near post with one then landed the ball on the top of the net with another. It seemed clear that Liverpool felt that Lloris was a potential liability.
Sadio Mane didn't add to his recent electric goalscoring spell but did have a couple of curled chances in the first half - both going wide.
At the other end, one of Spurs' best chances nearly came to them when Alisson and Milner both went for the same ball. Fortunately the Liverpool keeper quickly collected the ball at the second attempt.
Dele Alli and Lucas Moura both had good first halves and enjoyed the biggest share of Spurs' chances.
Second half
In summary, Liverpool were a disappointment as the game wore on. From his elevated position in the stands, Mauricio Pochettino made the tactical changes to cause Liverpool problems and as the game advanced the equaliser looked more and more likely.
It arrived through Lucas Moura. Harry Kane fouled in the middle of the pitch but took his free kick quickly with Liverpool all over the place. The ball was fed back through to the middle of the area and it was the simplest of tap-ins for Moura.
Spurs then looked the most likely to go on to win it - a two v one situation and Sissoko should have done much better than blasting over. They will rue that miss when they wake up tomorrow morning. The reds made some final attack minded subs, but it all looked like too little too late.
That is until the clocked ticked to 90 minutes and the below average Mo Salah headed a ball back across the face of goal. Lloris dealt with it badly and in the ensuing melee Alderweireld forced the ball into his own net.
A true stoppage time goal sucked in by the Kop.
Huge elation from the Anfield crowd and a very important three points.
Seven games to go and Man City still hold the main advantage but the title race continues. What a game!