Nashville SC became the first MLS team to win a competitive match at the Estadio Azteca. LAFC knocked out the reigning Concacaf champions. And yet, the debate about whether MLS has truly closed the gap on Liga MX is somehow still unresolved — which tells you everything about how complicated that question really is.
The Concacaf Champions Cup semifinals are set: Nashville face Tigres, LAFC take on Toluca. Two leagues, two teams each. The bracket couldn't be more symmetrical if Concacaf had drawn it up by hand. Before those ties kick off the week of April 28, here's what the quarterfinals actually revealed.
The gap isn't a gap — it's a spectrum
LAFC manager Marc dos Santos put it plainly after eliminating Cruz Azul: "MLS has grown a lot in recent years. I remember 15 years ago when MLS teams would play against Liga MX opponents, the difference was really big. Today, it's not like that. It's closer."
He's right. But "closer" still depends enormously on which teams you're talking about. LAFC aren't a typical MLS side. Son Heung-min and Denis Bouanga up front, Hugo Lloris in goal, and a home fortress that has chewed up opponents for years — that's not a representative sample of what the league produces. Nashville's victory at the Azteca, meanwhile, came against an América side that's barely scraping into Liga MX's playoff spots after winning three straight titles. Context matters.
Nashville manager BJ Callaghan wasn't getting carried away: "It's just one more step forward to the semifinal where we're going to have more work to do if we're going to continue to pursue our ambitions." Exactly right. A win over a struggling América is a landmark. It isn't a revolution.
What it does mean, though, is that both MLS semifinals participants will enter their ties with genuine belief — and bookmakers treating either as simple underdogs should think carefully. LAFC at home is a different proposition from LAFC anywhere else, and Nashville have now shown they can win in the most hostile environments in the region.
Away goals: a rule that still bites
Seattle Sounders fans know this better than anyone right now. The Sounders beat Tigres 3-1 on Wednesday in Seattle — a genuine comeback — and still went out. Their 2-0 loss at El Volcán the week before sealed it, with away goals sending Tigres through on a 3-3 aggregate. Schmetzer called Tigres "a tremendous team," which is generous given the circumstances, and he's not wrong. But his side had three goals in the second leg and nothing to show for it.
UEFA ditched away goals in 2021. CONMEBOL followed. Concacaf is the last major confederation still using them, and the Sounders' exit is a textbook case for why the rule creates perverse outcomes. A corner-kick goal from Tigres defender Joaquim just after the half-hour mark flipped the script entirely — Seattle went from needing one goal to needing four, almost instantly.
"Our guys fought back, got ourselves back in the game and had numerous chances to score that fourth goal," Schmetzer said. They did. The rule just made that fourth goal essentially impossible to reach in context.
Tigres boss Guido Pizarro acknowledged the tie was razor-thin: "The tie was really even. We were better there, and here they found goals at the right moments." Extra time would have settled it on the field. Instead, a goal scored 3,000 miles away decided everything.
The officiating needs to keep pace
Two matches. Two Salvadoran referees. Two performances that brought back memories Concacaf would rather forget.
In the Cruz Azul vs. LAFC tie, Ivan Barton handed out cards liberally early on, then allowed Carlos Rotondi to commit what looked like a rugby tackle on Bouanga despite already being booked. In Seattle, Ismael Cornejo was left standing on the field waiting for a VAR review on Albert Rusnák's opening goal — a tight call where the line drawn afterward wasn't exactly the sort of irrefutable evidence that justifies overturning a goal.
Liga MX has semi-automated offside technology. UEFA has it. Concacaf is asking its referees to manage high-stakes continental knockout ties without the same tools. As LAFC, Nashville, Tigres, and Toluca now prepare for semifinals, the competition deserves officiating infrastructure that matches the occasion.
Tigres manager Pizarro framed the whole thing simply: "I put a lot into going through." So did everyone else. The least Concacaf can do is make sure the margins are decided by football.
