 However, on as a second-half substitute in the UEFA Europa League match against Inter Milan on 19 February, he rescued a 3–3 draw for Celtic with a stoppage-time equaliser, controlling a lobbed pass onto his chest before volleying into the roof of the net.On 15 March, Guidetti won his first silverware at Celtic, as they defeated Dundee United 2–0 in the League Cup Final at Hampden Park.He came on in the 69th minute for Griffiths, and 15 minutes later when James Forrest won a penalty, Celtic players wanted Guidetti to take it; Forrest took it himself and it was saved by Radosław Cierzniak.