Former Peterborough United striker off the mark for Derby County in a famous win against Manchester United at Old Trafford

Jack Marriott (centre) celebrates his first Derby County goal at Old Trafford.

Former Peterborough United striker Jack Marriott launched his goalscoring career at Derby County in thrilling fashion last night (September 25).

Substitute Marriott scored for the Rams in a Carabao Cup win over Manchester United at Old Trafford with a close-range header after showing great anticipation in the penalty area.

That goal gave Derby a 2-1 lead late in the game and although Marouane Fellaini equalised in stoppage time, the Championship club won a high-class penalty shootout 8-7.

Marriott converted his penalty in the shootout.

Jack Marriott (14) scores for Derby County against Manchester United.

Marriott tweeted after the game, saying: “What a result and what a place to get my first Derby goal!”

Marriott (24) has found it tough to break into Derby’s first-team following his £4 million move from Posh in the summer. He has yet to start a Championship match for his new club.

Marriott scored 33 goals in his sole season with Posh.