Messi celebration is most-liked Instagram post
Lionel Messi's Instagram message celebrating Argentina's World Cup win has become the most popular post in the social media platform's history, with 56 million likes.
Messi finally won international football's greatest prize after Argentine edged out France 4-2 on penalties after a thrilling 3-3 draw in Sunday's final at Lusail Stadium.
For the seven-time Ballon d'Or winner, it is the final rubber stamp on his status as the greatest footballer of his generation, and arguably the greatest of all time.
Now, Messi has another record to his name, with his post in the wake of Argentina's success surpassing the previous high-water mark held by the World Record Egg, which gained 55.9 million likes.
In the third sentence, what does it refers to? Also, why use the expression "rubber stamp" here?