MADRID, SPAIN - FEBRUARY 14:  Sergio Ramos of Real Madrid celebrates after the UEFA Champions League Round of 16 First Leg match between Real Madrid and Paris Saint-Germain at Bernabeu on February 14, 2018 in Madrid, Spain.  (Photo by Gonzalo Arroyo Moreno/Getty Images)

4 Things We Learned From Real Madrid's 3-1 Champions League Last-16 Win Over PSG

Real Madrid set aside their disappointing domestic form on Wednesday night as they overcame Paris Saint-Germain 3-1 in the first-leg of their Champions League last-16 contest. 

Adrien Rabiot's tidy finish after a late run into the area put the visitors ahead shortly before the half-hour mark, however Cristiano Ronaldo scored either side of half-time, recording his 100th and 101st UCL goals for Los Blancos in the process, before Marcelo's volley gifted Zinedine Zidane's outfit a two-goal buffer for their trip to the French capital next month. 

So, following a clash that truly lived up to its billing, let's take a look at four things we learned....

1. Cristiano Ronaldo Is Mr. Champions League

Despite already being the Champions League's all-time top goalscorer, Ronaldo's spot kick on the stroke of half-time wrote his name once more into the history books, with the conversion from 12 yards securing his 100th goal in the competition for Real Madrid. 

The five-time Ballon d'Or winner's overall performance was up there with his best so far this season, mucking in defensively as well as catalysing a spirited comeback with a brace. 

The 33-year-old optimises the characteristics, fight and outright mind-boggling ability needed to be successful in Europe's greatest club prize. 

2. Real Madrid's Love Affair Continues

On the night of love inside an electric Santiago Bernabeu Stadium, Real Madrid's infatuation with the Champions League grew yet again. 

The 12-time winners are no novice in big games, and despite their rocky form in both the Premier Division and Copa del Rey this campaign, things seemed business as usual amongst the continent's elite. 

It is not uncommon to see Los Blancos find success in the tournament alongside underdelivering domestically, and even though the trip to the Parc des Princes will be tough, it would be typical of the Spanish capital side to rise above all else when doubts are circulating. 

3. Champions League Needs VAR

Yep, I said it. 

After Uefa president Aleksander Ceferin claimed the game was not ready for video technology and even hinted at blocking any movement to implement it in the competition, Wednesday evening's contest highlighted the need for VAR more so than ever. 

Before Rabiot fell victim to an underserved yellow card in result of Luka Modric throwing himself to the floor like he'd been shot under no contact, Neymar and Toni Kroos were both culprits of embarrassingly attempting to deceive the referee, with the Brazilian already on a yellow card at that point. 

Add that to a number of incorrect calls from the linesman with goalscoring opportunities on offer, when the prize means so much, it all seems a bit ridiculous to not utilise the technology. 

However, football's governing bodies haven't exactly been open minded to it before, have they? *Cough* Frank Lampard *Cough* - still hurts. 

4. Advantage Los Blancos

However, after all is said and done and all decisions have been over analysed, it still reads that Real Madrid will take a two-goal buffer to Paris in the first week of March. 

Undeniably, Los Blancos will not have the home comforts which were pivotal to Wednesday's success, and will travel in the knowledge that a 2-0 defeat will see them exit the competition, but, at this point, it is very much advantage Zidane.