Dundee made one change Lyall Cameron replayed Josh Mulligan who has flu. Dundee started this cup tie in a positive mood and forced a corner in the first minute.From the corner by Fin Robertson his cross found Simon Murray in the six yard boax and his clever header went across the goal and into the net to give the dark blues the lead.
A few minutes later and Murray had a shot which just went over the bar, Und had the ball in the net on 9 minutes but the ball went out and came back in for the cross. It was checked by VAR and they agreed with the officials.
Both teams attacked with Dundee going close when Donnelly headed just over the bar. Graham missed a header for Und and maybe should have scored.
The Dark Blues came agonisingly close to a second goal after Lyall Cameron sent Ethan Ingram away down the right. His low cross found Murray whose shot was blocked and then Robertson and Cameron had shots blocked in a proper goalmouth stramash.
Dundee were the better side in the first half, but United started the second half well, and Dundee had to dig in and defend their goal. They forced Carson into make a few good saves. Dundee hit on the break and Cameron was unlucky when he put his shot over the ball.
Seb Palmer-Houlden replaced Seun Adewumu after 65 minutes. The young Austrian had been a menace to the United defence, but Palmer-Houlden’s fresh legs and hard work were of great value in the closing stages
The last 20 minutes Und threw everything at the Dundee goal, but Carson saved went needed and Ingram cleared a certain goal, when he blocked the ball.
Imari Samuels came on for Cesar Garza for the last 12 minutes of play. He played at left back with Fin Robertson moving into midfield.
United hit the post late on and Trevor Carson tipped the ball over the bar when it came back to Paton.
In a last minute Fin Robertson had a shot saved and it was a corner to Dundee, and that was when the final whistle went.
Dundee got a famous win the first since 1956 in the Scottish Cup. A great result for the club and for the fans. They deserved it on the night and hopefully can get a run this year.
Dundee: Carson (c), Astley, Clark Robertson, Donnelly, Ingram, Sylla, Garza (Samuels 83), Fin Robertson, Cameron, Adewumi (Palmer-Houlden 65), Murray. Unused Subs: McCracken (gk), Sharp (gk), Tiffoney, Main, Graham, Vetro.
Referee: Matthew MacDermid.
Att: 8,9294