 He also made sparing appearances at reserve level, making his debut for the reserve team aged 14 against Sheffield Wednesday reserves on 26 October 2010. and making a substitute appearance for the reserve side in a victory at Burton Albion.Bennett's progress was such that he was named in the first team squad for the first time in the League Cup game against Shrewsbury Town on 9 August 2011, under a month after his 15th birthday.However, he remained an unused substitute as Derby lost 3–2.