Real Madrid's Cristiano Ronaldo, Sergio Ramos and Dani Carvajal celebrate after Javier Hernandez (not pictured) scored the first goal during their Champions League quarterfinal second leg match against Atletico Madrid at the Santiago Bernabeu stadium in Madrid, April 22, 2015. [Photo/Agencies]

Ronaldo forced a good save from Oblak with a 32nd-minute free kick before racing through with a clear site of goal a minute before halftime.

Oblak was again equal to the challenge, racing out to block Ronaldo's fierce shot and deflect the ball away for a corner.

Real threatened immediately at the start of the second period when Isco threaded a pass through for Hernandez but he scuffed his shot wide of the far post.