The report says America established control quickly and never really loosened their grip before the interval.
That sequence matters. In a tournament built around Liga MX and MLS matchups, early control often decides everything. A side playing from 3-0 down has to open up, take risks and leave space. That appears to be exactly the scenario San Diego were forced into.
If one player framed the night, it was Rodriguez. The update says he not only scored the opener but also created the third, giving America both incision and authority in the biggest moments of the match.
That kind of influence is often what separates established continental teams from newer tournament entrants. America seem to have played with clarity: strike early, keep the pressure high, and punish transitions. San Diego, by contrast, appear to have spent too much of the night reacting rather than dictating.
Luca Bombino reportedly pulled one back in the second half, which at least gave San Diego something to build on. But reducing the deficit is different from changing the match, and this one seems to have been decided long before the final stages.
Now the focus shifts quickly. America are said to be heading toward a trip to Portland Timbers, while San Diego appear set to return home to face Club Tijuana. That next round should tell us whether this was simply a fast start from America - or an early statement.