If you thought Gisele Bundchen would be off limits during the roast of Tom Brady, think again -- 'cause the 7-time Super Bowl champion was just ruthlessly attacked over his divorce on Sunday ... with numerous comedians taking aim at the guy.
Brady was the center of attention during the live Netflix special ... and so far, there have been no punches held.
Kevin Hart -- the host of the festivities -- was first to go in on TB12 ... mentioning the fact his ex is now with "karate guy" Joaquim Valente, the dude who helped train his family in jiu-jitsu.