The Portuguese superstar was once again at his awesome best against Atletico Madrid on Tuesday.
His efforts alone would appear to have weighted the last four encounter firmly in favour of the Blancos ahead of a return date across the Spanish capital.
Ronaldo - Hat-trick versus Atletico Madrid
Cristiano Ronaldo is applying finishing touches to a masterpiece of a career - this hat-trick in the UEFA Champions League semifinalsPosted by Goal.com on Wednesday, 3 May 2017
Back-to-back trebles – having achieved the same feat against Bayern Munich last time out – have taken his record-breaking haul in the competition to 103.
7 - Cristiano Ronaldo and Lionel Messi have now both scored seven Champions League hat-tricks. Magnificent.— OptaJoe (@OptaJoe) May 2, 2017
Messi has been left behind on 94, with Barca crashing out of the Champions League at the quarter-final stage this season.
Ronaldo now has his sights set on another final, having become the first man since Robert Lewandowski in 2012-13 to achieve complete domination of a semi-final clash.
3 - Cristiano Ronaldo is the first player to score a hat trick in a Champions League semifinal game since Lewandowski in 2012/13. Machine. pic.twitter.com/ig1aWzaP0X— OptaCan (@OptaCan) May 2, 2017
Ronaldo helped Madrid to Champions League glory last season and also claimed the crown in 2013-14, with Atletico overcome in the final on both occasions.
Those successes have been added to the 2007-08 triumph he enjoyed while with Manchester United.