[3] He made his first team debut in a 5–2 win over Grimsby Town in an EFL Trophy group stage match at Bescot Stadium on 30 August 2016.

[12] After a period of matches on the bench, Cockerill-Mollett made his Tamworth debut on 30 October 2021, in an FA Trophy 3rd qualifying round fixture away at Spalding United.

[14] Following a long lay off Cockerill-Mollett returned to first team action in a Southern League Premier Division Central fixture away at high flying Coalville Town on 15 January 2022.

[15] Following the departures of Gary Smith and Thomas Baillie, and with Scott Rickards in caretaker charge, Cockerill-Mollett was named in the starting lineup for the Southern League Premier Division Central home match against Alvechurch on 12 February 2022.

[22] He made four appearances in the competition, making his debut as a substitute against the Czech Republic[23] before starting against Russia[24] and Turkey[25] and coming off the bench for their defeat to host-nation Slovakia.