Exeter dethroned Prem champions Tub and reached their first remaining since 2021 because of a storming second-half revival on the Rec.
The Chiefs’ proud 100-per-cent report in play-off video games seemed sure to finish as Tub made mild of Finn Russell’s absence to steer 26-10 on the break.
However tries from Ben Hammersley and Greg Fisilau received the guests to inside touching distance and, with Tub’s Joe Cokanasiga within the sin-bin, Ethan Burger barrelled over to offer his aspect a 27-26 victory.
Exeter will play regular-season table-toppers Northampton within the remaining at Twickenham subsequent Saturday.
Extra to observe…