With Cristiano Ronaldo suspended for pushing the referee in the 3-1 win in the first leg as part of his five-game ban, Zidane was able to keep Gareth Bale, Casemiro and Isco on the bench. Madrid were content to control the ball for the second half as their opponents wilted.
In the second half, Lionel Messi went close when he hit the bar, but Madrid were happy to just keep the ball away from their opponents holding a comfortable first-leg lead. While Madrid look the team to beat in Spain and Europe, Barcelona's decline looks set to continue.
Marco Asensio celebra y Kovacic no se lo cree
Image credit: Getty Images
Barcelona look set to struggle for another season: Lionel Messi was a rare bright spark, but the defence looks shambolic and the midfield continues to look jaded. Ernesto Valverde might well be the manager to take Barcelona forward, but it seems hard to see how they can do this without fundamentally lowering the average age of Barcelona's squad.
MAN OF THE MATCH
Marco Asensio (Real Madrid): It was revealed this week that Barcelona also had the chance to sign the Mallorcan, but it was Real who pulled off the transfer. Asensio's goal was ridiculous, a masterpiece of chutzpah and technique. Real Madrid often look to the transfer market for a superstar, but they may have found one in their own ranks.
4' - GOAL! Real Madrid 1-0 Barcelona. Asensio scores - Right, let's all go home. Asensio lurks 30 yards out. Nobody is near him, so he strikes a shot at goal that looks set to fly over, Ter Stegen looks at it briefly, and it flips down into the net and past the 'keeper.
33' - VAZQUEZ CHANCE - A defensive mix-up puts Vazquez through on goal, and he hits a rising shot past Ter Stegen which crashes against the post.
39' - GOAL! Real Madrid 2-0 Barcelona. Benzema scores - A simple goal. Marcelo rolls a low cross into the box. Umtiti is there, looking at the ball. Benzema is there, running towards it instead. He gets a toe to it, flicking it up, and hooking it into the bottom corner from close range.
Marco Asensio of Real Madrid CF celebrates scoring their opening goal during the Supercopa de Espana Final 2nd Leg match between Real Madrid and FC Barcelona at Estadio Santiago Bernabeu on August 16, 2017 in Madrid, Spain
Image credit: Getty Images
53' MESSI HITS THE CROSSBAR - Messi runs in behind the defence, and he dinks a shot over the 'keeper only to see it hit the crossbar, but it bounces down and away.
55' - TER STEGEN SAVE - Marcelo pings in a pass to Asensio, who flicks it on to Benzema. From a tight angle, he lashes a shot that Ter Stegen beats away.
71' - NAVAS SAVE - Suarez dinks in a pass for Roberto, but Navas is out quickly to save. The ball is out to Messi, who forces a diving stop from Navas with a shot from distance. He spills it to Suarez, but he sends his effort against the near post.
Asensio has scored in four of his five cup final appearances for Real Madrid.