Tottenham's Hugo Lloris makes a save from Bayer Leverkusen's Javier Hernandez
Just a few minutes into the second half, Stefan Kiessling broke down the right and slid the ball through to Hernandez, who just a few yards out, had to give the home side the lead.
But Lloris somehow managed to not only stop the ball, but also claw it away from crossing the line to make an unbelievable save and keep Spurs level.
That save proved to be crucial as Spurs escaped the BayArena with a point after coming under intense pressure in the second half, after dominating the first and hitting the crossbar through Vincent Janssen and wasting a great chance through Dele Alli.
Watching events unfold from the touchline, Pochettino admitted he feared the very worst when Hernandez had the chance to open the scoring and was incredibly grateful to his goalkeeper for his wonder stop.
“The ball came to Chicharito and he just needed to touch it,” he said. “In my mind, I was thinking 'okay, now we'll need to work hard to score'.”
Tottenham manager Mauricio Pochettino
“It was brilliant, just brilliant. To talk about Hugo, he's one of the best. That's my opinion about him. It's great to have him in goal.
"His save was fantastic and very important for the team.”
A point in Germany means Spurs stay second behind leaders Monaco in Group E, but with three points separating top from bottom, it's anybody's guess who will make it through to the knockout round.
Tottenham entertain Leverkusen at Wembley in two weeks' time knowing a win would dramatically increase their chances of qualifying and Pochettino is aware of how anything can change in such a tight group but is confident Spurs can make it through.
Bayer Leverkusen's Stefan Kiessling in action with Tottenham's Victor Wanyama and Jan Vertonghen
“After the game it's a good point,” he said. “It was a game where we wanted to take the three points. After the second half, we need to feel pleased with the draw.
“It’s in our hands now at Wembley. We need to turn around the feeling of that first game against Monaco, to feel that it's our home and try to show that we deserve to win.
“It's tough to recover the points after losing the first game at home but the good win at CSKA and now this draw means it's all open and in our hands to try to go through to the next round.”
Tottenham's Hugo Lloris applauds fans