The center back was pleased with how his teammates handled the late surge from Tottenham in the clubs' Europa League clash Thursday.
Spurs fought back from a goal down at Estadio da Luz before the hosts' penalty in stoppage time secured a 2-2 draw for Jorge Jesus' men and kept their 16-month unbeaten record at home intact.
The second leg followed a surprise 3-1 win at White Hart Lane last week and the Argentine center back said that last year's Europa League runner-up did not doubt itself at any point.
"It was a very physical game, but fortunately we were able to secure a passage into the next stage of the Europa League," Garay told reporters. "We knew what awaited us was a hard game but we showed that we were prepared for any eventuality."