Ronnie: Brilliant result and performance, the result was all that mattered and such sweet revenge for league defeat. Dundee have a doggedness and steel about them now and with players back from injury and great looking new signings settling, we're hopefully on for decent cup run and top-six finish.
Tony Docherty's men also have the top six in their sights after an impressive four-game unbeaten run that has seen them draw with both Old Firm sides. Integral to that form has been striker Murray, who is now on 14 goals for the campaign after returning to the club from Ross County in the summer.
Ruari Paton has joined Dundee United on loan from Port Vale for the rest of the season.The former Queen's Park player, 24, joined Vale on a three-year deal and has scored three times in 24 appearances.
United fans, were you at Dens Park to see your side exit the Scottish Cup or were you following along from home? Either way, we want your thoughts on the game.
Alasdair Lamont is joined by Jim Spence and Sean Hamilton to look back on the final Scottish Cup tie of the weekend as Dundee knocked their city rivals Dundee Utd out of the Cup and take a closer look at the current state of both clubs.
Dundee Town Manager Tandra Davis resigns after answering allegations about the town's overdue audit, credit card purchases and a donation of laptops.
Match report as Simon Murray secures Dundees place in Scottish Cup fifth round to set up tie with Airdrie United; Dundee United beaten by city rivals for first time since August 2017
Dundee United are close to signing Stockport County midfielder Lewis Fiorini and Port Vale forward Ruari Paton on loan. (Sun) Fiorini, 22, is in advanced talks with United while Paton has arrived for a medical.
BBC Scotland takes a look at Dundee and Dundee United's history in the Scottish Cup before the sides meet on Monday.
Dundee are in talks with Monterrey over a loan deal for 21-year-old winger Victor Lopez, who could be recalled from his current loan to Mexican rivals Queretaro. Daily Record) Aaron Donnelly says he is returning to Dundee a better player after spending the first half of the season at Colchester United.
Dundee manager Tony Docherty tells BBC Scotland: "A really pleasing start to the game. You then saw the mentality, the resilience and character of the team to see out the game and get a clean sheet.
Tony Docherty praises his players' "mentality, resilience and character" after Dundee secure their first derby victory in more than seven years.