Deportivo nearly managed to pull one back late on but Florin Andone saw his penalty kick saved by goalkeeper Keylor Navas.
Kroos had the first half-chance of the second period after finding space in an advanced area, but the German's effort was deflected wide of the Deportivo post six minutes after the break.
The long-serving captain picked up a yellow earlier in the game for shoving his palm into the face of Fabian Schar (see photo above) but it was his second caution - for a tenuous "elbow" on Borja Valle - that saw him enter the record books... The striker created the first himself, battling past Dani Carvajal, who claimed for a foul, and forcing Keylor Navas into a good diving save from a tight angle.
Deportivo continued to threaten, however, with Andone heading over the crossbar from close range in the 37th minute, while Bakkali was causing problems to the champions with his pace and trickery in a wide position.
Those squandered chances proved costly when Madrid moved ahead in the 20th minute.
Seven minutes later, Real Madrid doubled their advantage as Casemiro converted a low cross from Marcelo, who had danced past a couple of challenges before putting the ball on a plate for his fellow Brazilian.
Accused Virginia Rally Attacker Is Northern Kentucky Native
Most of the rallies were peaceful, though in Seattle protesters clashed with a previously planned pro-Donald Trump rally. Originally from Kentucky, Fields, moved to OH and lived in Maumee, according to the New York Times Sunday.
"Sergio Ramos' red card?"
- There were 44 passes in the build-up for Casemiro's goal, the most before a goal in La Liga since at least 2006/07.
The Welshman ended a run of 10 games without a goal for Real Madrid, his longest ever goal-drought, when he tapped into an empty net following Benzema's chipped assist.
Zidane made four changes from the side that completed a 5-1 aggregate hammering of Barcelona in the Spanish Super Cup on Wednesday.
- Toni Kroos has scored three goals in his last four games in La Liga, one fewer than he had in his previous 94 (four).