Portugal and Denmark are locked at 0-0 after a tense first 45 minutes of their Euro 2016 Group I qualifier in Braga.
Cristiano Ronaldo was presented with the game's first chance, but the Real Madrid forward snatched at a shot from range which bobbled harmlessly into the hands of Kasper Schmeichel.
Nicklas Bendtner then sliced a shot wide with Christian Eriksen standing in space to his side.
Both sides prevented each other from creating any clear-cut chances in the opening half-hour, but a mistake gifted Ronaldo with the ball on the edge of the box in the 33rd minute, although Joao Moutinho blasted his shot over the bar after being teed up.
Nani came closest to breaking the deadlock a few minutes before the break, but his looping header bounced off the bar.