Lionel Messi and Son Heung-Min will lead the MLS All-Star First XI when the league's best face Liga MX standouts in the marquee midsummer showcase — a selection that doubles as both a popularity contest and, increasingly, a genuine barometer of how far American soccer has traveled.
Messi's inclusion surprises no one. The Inter Miami forward has redefined what star power means in MLS since his 2023 arrival, and his presence on any All-Star roster is less a selection than an inevitability. Son's inclusion alongside him, however, signals something broader: that MLS has accumulated enough genuine talent to field a First XI where a World Cup-decorated attacker from Tottenham Hotspur is not the headliner but a co-equal draw.
The All-Star Game against Liga MX carries stakes that other all-star exhibitions in American sports simply do not. For MLS, it functions as an annual credibility audit — a chance to demonstrate that the league's investment in elite players is translating into competitive quality, not just highlights and ticket sales. Liga MX remains the gold standard of professional soccer in North America, and the head-to-head format refuses to let MLS ignore that benchmark.
Messi's regular-season form with Inter Miami has been the engine driving the Eastern Conference standings conversation all year. A fit Messi doesn't just win individual awards — he warps playoff races, forcing Eastern Conference rivals to game-plan around a player who can decide matches in moments that have nothing to do with systems or tactics. His All-Star selection, then, is also a reminder of the competitive gravity he exerts on the league's broader picture.
Son brings a different dimension. His combination of pace, technical precision and attacking intelligence represents the kind of proven, elite European pedigree that MLS clubs have chased for years with uneven results. His ability to perform at this level matters beyond the All-Star exhibition — it validates the league's recruitment strategy and raises the ceiling for what opponents in the Western and Eastern Conferences must prepare to contain on any given matchday.
Whether the MLS XI can translate star quality into a result against Liga MX is the question that will define how the game is remembered. Past editions have been competitive; some have been convincing MLS victories. But Liga MX consistently arrives with something to prove, and its standouts will not defer to Messi's reputation when the whistle blows.
What the First XI selection confirms is that MLS has reached a moment where its All-Star roster can be assembled around world-class players without the roster feeling assembled by desperation. The league still has ground to close on Liga MX institutionally — in depth, in development, in transfer market clout — but on one summer night, with Messi and Son on the pitch, it will put its strongest argument forward.