The Last Starless Weekend: Squad Depth, Defensive Arithmetic and Philadelphia's Quiet Answer in the MLS Roundup

San Diego FC led 3-0. By the 80th minute the scoreboard read 3-3. A side that surrenders a three-goal cushion does not have a football problem; it has a structural one. This was the weekend MLS ran a natural experiment in squad depth — played without Messi, Son, Bouanga and Musa — and the results exposed which clubs are built back-to-front and which are built around a single import. Nashville's distributed attack, with Hany Mukhtar on 13 goals and 7 assists while Sam Surridge under-scores, suggests an identity not dependent on one No. 9. Philadelphia won comfortably without Cavan Sullivan, their USMNT-debuting teenage star, because Milan Iloski — signed in August 2026 as a backup to Tai Baribo — now has 16 goals; that is internal-market arbitrage inside a salary-capped league. Dallas won a low-quality game through a corner, a set-piece discipline that converts dead balls into control. San Diego's defensive collapse (goalkeeping error plus a marking failure) is the compound risk of a knockout format. New England lost 3-0 to a reeling RSL side, contradicting the author's insistence that they are good. RSL's one win is relief, not recovery, in the post-Zavier Gozo universe. The contrarian read: 'best MLS team ever' framing around Nashville is hype, and the Cavan Sullivan narrative inverts the actual story — the team won without him. The forward signal: MLS halts operations during international windows starting next year, which will neutralize the very squad-depth advantage this weekend revealed.