The Argentine was delighted with his team's intensity at Camp Nou and has confidence that it can can follow up the 1-1 draw with a win, despite potentially being underdogs.
The Catalans failed to conquer the Rojiblancos for the fourth time this campaign on Tuesday, drawing 1-1 in the first leg of their quarterfinal tie at Camp Nou, with Neymar having cancelled out Diego Ribas' incredible opener.
Martino was far from concerned by his side's performance, though, and was is an optimistic mood ahead of the return leg at the Vicente Calderon next Wednesday.
"To not reach the semifinals would be failure on my behalf," Martino told TVE after the match. "We deserved more out of the first leg, but it fills me with confidence considering how we played. We showed intensity for 90 minutes.
"There's no doom and gloom, just satisfaction. Atletico's only chance aside from their goal came from a bad distribution from Jose Pinto early in the game. But Diego's goal even made me want to cry out, it was such a golazo."
Martino suggested that Atletico is now a slight favorite heading into the second leg due to its home advantage but that his team will go through if it can replicate its first-leg showing.
"The tie is very even," the Argentine added. "I do not know if the fact that them playing at home counts for something but, again, everything is very close.
"The 1-1 result favors them and puts us slightly below but our performance gives me peace of mind. If we can continue like this then we will win."