The 19-year-old replaced Fikayo Tomori in the London derby and impressed many with his speed, timing and sheer bravery.
Lamptey has been highly rated in Cobham for while after breaking into the Under-18s team in the 2017/2018 season.
With Reece James struggling with injury and Marcos Alonso out, Lampard was forced to introduce Lamptey against Arsenal.
But just who is the latest youngster off the Stamford Bridge production line?
Background
Lamptey was born in Hillingdon, London, and is also eligible to play for Ghana through his father Ahmed.
His father is also his manager and combines his full-time job with driving him to training every day.
Chelsea rise
Tariq Lamptey joined Chelsea at the age of 7.
His role model is former Chelsea and Ghana midfielder Michael Essien.
He made his youth debut for Chelsea during the 2016/2017 season away at Manchester City and in that season was the highest Under-18s appearance-maker.
Lamptey contributed 11 assists from right back as Jody Morrison’s side secured an unprecedented quadruple.
Lamptey signed his first professional contract for Chelsea in September 2017.
He was first included in the Chelsea first team for the Carabao Cup defeat to Manchester United in October but did not feature.
Blues youngsters
Tariq Lamptey is the seventh Chelsea Academy graduate to have made a first-team appearance under Frank Lampard, following in the foot-steps of Fikayo Tomori, Reece James, Mason Mount, Billy Gilmour, Marc Guehi, Ian Maatsen.
