Substitute Jonny Smith’s last-minute goal condemned Hull City to defeat against bottom club Burton Albion.
Captain Richie Smallwood replaced the injured Alfie Jones in the only change from the last league game against Swindon Town.
Hull City stormed to a 5-0 win on their only previous visit to the Pirelli Stadium in April 2018 but the latest meeting started in a far more competitive manner.
A long ball was chased by Kane Hemmings but claimed by George Long on the edge of his area; the Burton striker felt the keeper had handled outside the box but was instead penalised for a foul.