Isaías says he is unsure why Adelaide United has not beaten Melbourne City since Marco Kurz has been in charge, and added he hopes that can change this Saturday.
The Reds leapfrogged City into fourth place in the league standings following that enthralling 4-3 comeback win over Brisbane Roar last weekend.
But they have experienced scarce success against the Victorian outfit with Warren Joyce at the helm, winless in their past four matches.
Isaías was uncertain why that was the case, but said his players are heading into the game full of confidence, particularly after successive stoppage-time victories.
“I don’t really know,” Isaías explained to reporters at a press conference.
“Sometimes interesting things happen in football, but it also happened last year against Sydney FC and we played against them in the final and we won, so we can do it against Melbourne City this weekend.
“I think we’re in good form at the moment and we’re feeling really confident to go there and get something positive.”
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After the Reds have registered back-to-back late wins, the Spaniard believed that could only prove beneficial for the team moving forward as it further builds belief in the squad.
“I think it’s very important to win these types of games that give the team high confidence,” he said.
“I think for us it’s good to keep this high winning mentality and keep this form going.”
Having not scored a goal for Adelaide since the Hyundai A-League 2016 Grand Final, the 31-year-old has now scored in consecutive weeks.
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Against Brisbane he dispatched a stunning free-kick – not too dissimilar to the one in the Grand Final – throwing the Reds a lifeline just before half-time.
“I think in these kinds of games if you want to come over these types of games it’s always in crucial moments,” he admitted.
“And I think the goal before half-time was a crucial moment.”
He revealed he has never scored in three straight matches as a professional, before jokingly stating he has never found the back-of-the-net three times in a row in training or playing as a kid.
However, he said the most important thing was ensuring he does his best first and foremost before worrying about individual objectives.
Adelaide United face Melbourne City in Round 18 of the Hyundai A-League 2018/19 season on Saturday, 9 February at AAMI Park. Kick-off is at 7.20pm ACDT. Live on Fox Sports, 10 Bold and streamed on the My Football Live App and Kayo Sports.