NFL.com breaks down what you need to know from Week 2 of the 2021 NFL preseason. Catch up on each game's biggest takeaways using the links below:. Mitchell Trubisky's revenge! The former Bears first-round quarterback continued a career-long trend of frustrating Chicago fans. However, this time Trubisky provided the Soldier Field crowd with exasperation by dicing up the home team's defense. Aided by Brian Daboll's stellar planning and play selection, Trubisky hit a cornucopia of slants, destroying Chicago's defense to the tune of 20-of-28 passing for 221 yards and one TD while putting up 34 points in just two quarters. Trubisky looked as calm as he ever has under center, finding targets quickly and escaping when needed. Often Trubisky's first read was open, and he showed good accuracy over the middle. He still doesn't have the deep sideline throw in his toolbox, but that was the only negative for him on Saturday. The Bills punted once in Trubisky's seven drives, scoring TDs on the first four possessions. Trubisky signed in Buffalo to work under Daboll's tutelage behind Josh Allen and revamp his NFL value. On Saturday, the QB showed his reclamation process is off to a great start.