Kiko Casilla had been filling in beneath the posts and did not play any worse than the team’s starting shot stopper did in Germany, with Navas indecisive in key moments, such as in the first Borussia Dortmund goal of the evening – when he punched the ball straight at Pierre-Emerick Aubameyang and Raphael Varane.
Although he started the match well by saving an early Gonzalo Castro effort, he soon showed his nerves by opting to punch a ball that he would normally have caught moments later and paid the price when he did likewise in the 43rd minute.
Another common theme throughout the game was his opting to punt the ball long in order to relieve pressure, which was perhaps further evidence of his uncertainty.
In the second half, the Costa Rican did well to save a number of efforts, although he would have been disappointed had any of them slipped past him.
Raphael Guerreiro, Aubameyang and Emre Mor were all denied, while there was little he could do to stop Andre Schuerrle’s excellent late equaliser.
Although the 29-year-old was back from his injury, the Navas of 2015/16 has not yet returned.
Last year’s Navas would have claimed far more of the balls that Tuesday night’s version punched or booted away, so Zidane will hope – and expect – that with time his starting goalkeeper can recover last season’s form.
The fact that few teams will put together the 20 shots that Dortmund did should also make life easier for the Costa Rican as he finalises his return beneath the Real Madrid posts.