Lionel Messi of Barcelona blows a kiss after scoring the opening goal during the Champions League match with Chelsea at Camp Nou stadium in Barcelona, Spain, March 14, 2018. /CFP

Barcelona's then players Luis Suarez (L), Neymar (C) and Lionel Messi celebrate their victory during the La Liga match with Atletico Madrid at Camp Nou stadium in Barcelona, Spain, January 11, 2015. /CFP

The Tianjin Tower in Tianjin, China, is lit with the words "Continue the legend" to acknowledge the 34-year-old Argentina footballer's move from Barcelona to PSG, August 9, 2021. /CFP

Lionel Messi waves to supporters from a window after landing at Le Bourget airport in Paris, France, August 10, 2021. /CFP

Lionel Messi undergoes his medical test ahead of signing for PSG in Paris, France, August 10, 2021. /CFP

Argentina's Lionel Messi (L) and PSG's Qatari president Nasser Al Khelaifi during the ceremony to sign Messi's two-year contract with the club in Paris, France, August 10, 2021. /CFP

Lionel Messi holds up his PSG No. 30 jersey during a press conference in Paris, France, August 11, 2021. /CFP

Lionel Messi greets PSG fans after his press conference at Parc des Princes in Paris, France, August 11, 2021. /CFP

PSG fans wait outside their home stadium during Lionel Messi's press conference at Parc des Princes in Paris, France, August 11, 2021. /CFP

Lionel Messi (L) and Neymar run together during a training session of PSG in Paris, France, August 13, 2021. /CFP

(L-R) Achraf Hakimi, Gini Wijnaldum, Gianluigi Donnarumma, Sergio Ramos and Lionel Messi during the PSG's presentation of the new players before the Ligue 1 match between PSG and Strasbourg at Parc des Princes in Paris, France, August 14, 2021. /CFP

Lionel Messi (L) and Neymar watch the Ligue 1 match between PSG and Strasbourg at Parc des Princes in Paris, France, August 14, 2021. /CFP

People queue up for souvenirs at a PSG store in Paris, France, August 11, 2021. /CFP

Jerseys bearing Messi's name and the number 30 are stocked for sale in a PSG store in Paris, France, August 11, 2021. /CFP

A staff member of the portrait team at Berlin's Madame Tussauds wax museum fixes the new PSG jersey on the wax likeness of football player Lionel Messi in Berlin, Germany, August 11, 2021. /CFP

Messi fans acknowledge the football star before the La Liga match at Camp Nou Stadium in Barcelona, Spain, August 15, 2021. /CFP