If Barca wins both matches in the Supercopa, Leo will have reached half a thousand wins as a Barca player.
Messi is chasing more and more records in the Supercopa which will be played this week. He is going to win his 35th trophy. If he did it, he will be 5 titles shy of Dani Alves, who's collected 40 trophies.
To win the cup, Barcelona definitely need to win the two games, which could be Messi's 499th and 500th win as a Barcelona player.
Leo has played 706 games for Barca (498W 131D 77L), scoring 618 goals. The most games he won in a single season was in 2014-2015. He won 47 games of 60 games he played that season.
Messi has played 18 games in Supercopa, won 9 games and scored 13 goals. He is the player who has won the most times in this competition (8) and also the one who scored the most goals. He won the Supercopa for 4 consecutive times from 2009 to 2012.