Dundee 1-0 Dundee United: What the manager said
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.
"The players wanted to atone for [the derby defeat at the start of the month], there was a bit of redemption. That was a really strong performance from Dundee United in the second half.
"I just think everything considered - I've got five centre-halves out - to put in that performance speaks volumes. I've got good players and we're very good on the counter attack.
"They put us under pressure but my lads stood up to that.
"Simon runs himself into the ground, gets himself a goal and I'm delighted for him and all the players.
"We'll give Airdrieonians the upmost respect. I've just glad we've got a home tie. I see the atmosphere tonight and that's what you can get at Dens Park with the synergy between players and fans. They see the effort the players are putting in.
"We're not getting ahead of ourselves. Tonight was a real big task to beat a good side at home and keep a clean sheet. We'll see what happens."