2. Most goals scored by a Portuguese player in single Serie A season
Ronaldo is known as being the best goalscorer in the world, and maybe ever, due to the diversity of his goals. On the 29th December 2018 Ronaldo scored two goals against Sampdroia which not only ensured Juventus' 100% record remained intact for another week, it also meant that Ronaldo set another record for being the first ever Portuguese player to score 15 goals in the Serie A during their a single season.
This is a phenomenal record for two reasons, firstly, it shows his ability to perform at an elite level in yet another one of the top 5 leagues, secondly, it exhibits that Ronaldo is the most prolific footballer to ever come out of Portugal, and thirdly it demonstrates that his success over the last decade wasn't just due to being at Real Madrid, Ronaldo can perform for any team.