Every new league eventually makes its first trade, the moment it stops feeling like an experiment and starts behaving like a sport. TGL, the simulator-and-green format co-founded by Tiger Woods and Rory McIlroy, got there on October 19, 2026, and the deal arrived with a storyline built for television. McIlroy, the captain of Boston Common Golf, has pulled his longtime friend Shane Lowry away from The Bay. The headline is simple. The details are more interesting, because the price, the process behind it and even some of the early reporting deserve a closer look. Here’s what happened, what’s actually new about how TGL builds rosters, and what to watch before the third season begins in December. The Trade, Explained Boston Common Golf said Monday it had completed a deal for Lowry, the 2019 Open champion, who moves over from The Bay, and its official release bills the move as TGL’s first-ever trade.…