Trialist Kalifa Cisse played the full 90 minutes for Derby's development squad on Wednesday night as he looked to earn a contract with the Rams.
Cisse, a free agent, filled the holding role in central midfield during a 2-1 defeat to Hull in the Under-21 Premier League Cup at Belper Town's Christchurch Meadow.
Aaron McLean's double put the Tigers in control at the break before Callum Ball responded late on for Derby.
Cisse has been training with the Rams but this was the first time the 29-year-old Mali international, formerly of Reading and Bristol City, had experienced any match action during his time with the east midlands club.
Head coach Steve McClaren and goalkeeping coach Eric Steele were at Belper and watched from the stand.