Most Champions League hat-tricks and top scorer for a single team are just two of the records Lionel Messi and Cristiano Ronaldo could set.
Cristiano Ronaldo and Lionel Messi have been rewriting the football history books for over a decade, and as the pair head into 2020, they are on the verge of racking up a stack of new milestones.
The iconic duo are hoping to propel their respective teams to Champions League glory this season while contesting for domestic honours in Italy and Spain, and there are new records to be set at club and international level for both players too.
Messi's Barcelona are top of LaLiga by two points and he has scored 11 goals in his last 10 games to step into the new year in optimistic mood, while Ronaldo is in a similar hot streak for Juventus after netting five in his last four Serie A outings.
At 32, Messi is two years Ronaldo's junior, but try telling the Juventus talisman that his career is nearing its end and he'll answer you with performances with all the pace, power and intensity of a player in his prime.
As two of the game's greatest embark upon what will doubtless be another year filled with glorious moments, here are the records they stand to smash along the way.
RONALDO: Most European Cup wins
Ronaldo won his fifth Champions League when Real Madrid beat Liverpool in the 2018 final and if he can inspire Juventus to glory in 2020 he will have won Europe's top competition as many times as current record holder Francisco Gento, who won six between 1956 and 1966 for Real Madrid.
MESSI: Top goal-scorer for a single team
Messi is 26 goals away from eclipsing Pele's club goals record of 643, which the Brazil legend is said to have scored for Santos. Record-keeping has become more accurate since Pele's day, and Messi is set to hit a new high that will take some beating.
RONALDO: All-time top European Championship goal-scorer
Ronaldo has scored nine goals for Portugal at the four European Championships where he has represented his country, putting him level with Michel Platini as the competition's leading scorer. If he can find the net in 2020's tournament, he will become the leading Euros marksman of all time.
MESSI AND RONALDO: Most Champions League hat-tricks
Messi and Ronaldo have scored eight hat-tricks each in the Champions League - more than any other player to have graced the competition - and if either can notch another in 2020 they could claim bragging rights for some time to come.
RONALDO: First player to be top scorer in English, Spanish and Italian top flights
Ronaldo is currently joint-fourth in the Serie A scoring charts with 10 goals, behind Joao Pedro (11), Romelu Lukaku (12) and Ciro Immobile (17), but if he can storm his way to the top in 2020 he will become the first player in history to have been top goal-scorer in the English, Spanish and Italian top flights.
MESSI: Seven Ballon d'Or wins
Ronaldo did not attend the Ballon d'Or awards ceremony in 2019 to see Messi claim a record sixth gong, and if the Barca star wins again in 2020 it is hard to see Ronaldo, who has won the award five times, ever catching him.
RONALDO: All-time international top-scorer
Ronaldo will be going all guns blazing for Portugal this year as he attempts to add to his 99 international goals and succeed Ali Daei, who scored 109 for Iran, as the top international marksman of all time.
MESSI: Four consecutive Golden Shoe awards
Messi has been the top goal-scorer in Europe for the last three consecutive seasons and he currently leads the LaLiga scoring charts with 13 goals. He was the first player to win the Golden Shoe, awarded to Europe's leading goal-scorer in league matches, three times in a row and could set another new record by doing it four times on the bounce.