Cristiano Ronaldo fans took shots at Lionel Messi fans after the Portuguese legend scored in Manchester United's 2-0 win against FC Sheriff.
United earned their first win of the UEFA Europa League campaign against the Moldovan side on September 15.
Jadon Sancho gave the visitors the lead in the 17th minute with a wonderful finish. The Red Devils were then awarded a penalty during the tail end of the first half as Diogo Dalot was tripped inside FC Sheriff's box.
Ronaldo stepped up and converted in style from the spot, placing his shot right down the middle of the goal. He now has 699 goals in club football, the highest ever by a player.
The legendary Portuguese couldn't reach the elusive 700 mark against FC Sheriff. However, his fans were vocal on social media about how the forward scoring a penalty hurt Messi's fanbase.
Here's how Manchester United fans reacted on Twitter:
With a goal against FC Sheriff, the five-time Ballon d'Or winner opened his tally for the season in his eighth game of the season.
While the numbers are nowhere near how much the great man is used to producing, given his pedigree in front of goal, he can certainly make up for lost time.
Cristiano Ronaldo and Lionel Messi are ready to dazzle in Qatar for the FIFA World Cup 2022
While the battle between the fan bases of both legends is eternal, the duo will be focused on the upcoming FIFA World Cup in Qatar. The event is set to commence on November 20.
Both players are at the wrong ends of their 30s at the moment with Ronaldo being 37 and Messi being 35. Hence, this might be the last time fans get to see both men lighting up arguably the biggest stage in sport.
Portugal and Argentina have good depth in their squads.
Apart from the legendary striker, the likes of Bruno Fernandes, Matheus Nunes, Joao Felix, Ruben Dias, Joao Cancelo, and more are Portugal's key players.
Argentina, meanwhile, have the likes of Angel Di Maria, Paulo Dybala, Lisandro Martinez, and more in their ranks. It will be interesting to see how far both nations can progress during the course of the FIFA World Cup 2022.
Ronaldo is Portugal's highest goalscorer with 117 goals in 189 matches. He is also the highest ever international goalscorer. He led them to the 2016 Euros victory. He has scored seven goals in the FIFA World Cup so far.
Portugal have yet to win the World Cup, with a third-place finish being their best position so far in 1966.
Meanwhile, Messi has scored 86 goals in 162 matches for Argentina, leading them to the Copa America victory in 2021. He has scored six goals in the World Cup.
Argentina have won two World Cups and also reached the final of the 2014 edition but were beaten by Germany. Messi won the Golden Ball (Best Player award) that year.