As a Brazilian-born football analyst raised in London, I’ve modeled every Premier League fixture using Opta and VAR data—and the numbers don’t lie. If Chelsea advances to the Copa del Rey final, their 2-week prep window is dangerously optimistic. My analysis shows they need at least three weeks: tactical recovery, squad rotation, and psychological reset aren’t luxuries—they’re necessities. Here’s why cutting corners will cost them more than just a loss.