Fraser Watson
BBC Sport Wales reporter

It wasn't perfect by a long stretch, and when the dust settles, Filo Tiatia will know he has to address the ill-discipline that cost his side dear in the first-half. But now is not the time for minor gripes.

After their struggles of recent years, and the suffering of fans, this is a moment Dragons deserve. Three times tonight, they were bold enough to opt for the corner from a kickable penalty and it yielded 21 points.

The scrum may have creaked, but the front-row replacements made telling impacts with Wyn Jones helping create the third try and Elliot Dee going over himself for the fourth.

Despite their clear improvements this season, initially under Tiatia this side was still failing to turn performances into wins in tight games - especially on the road. That balance has been spectacularly addressed these past two away trips.

In the semi-final, it's Montpellier away. Will Dragons fans now be dreaming of a European final? For now at least, I'd say dream away, they deserve too.

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Dragons head coach Filo Tiatia speaking to S4C:

"We're very happy. We're representing the people of Gwent, but also Wales as well.

"I'm really proud of getting over the line.

"The last few minutes, we needed to tighten up on a couple of things.

"But all in all, I'm really proud of the effort, of all the players and I'm really grateful that we got through."

Man-of-the-match Harrison Keddie speaking to S4C:

"The biggest thing was the win tonight.

"We spoke about it all week, how to earn a crack at it.

"We knew it was going to be tough, Zebre are a good team, particularly at home.

"The first 20 minutes was a real contest and we spoke about weathering that storm and applying our game to them.

"I think we did that well and we got out of it what we wanted to."

Dragons' Thomas Young speaking to S4C:

"It was a very hard game, but it means everything to us.

"We know we're close as a group and we're just so proud to be in the next round.

"We'll enjoy it tonight and look forward to that when it comes around.

Dragons' Angus O'Brien speaking to S4C:

"I'm just so proud of where we've come from and the growth we're making.

"We've got a semi-final to look forward to now."

Dragons' Angus O'Brien speaking to S4C:

"I'm just absolutely elated, it means so much to us as players, the club, everything.

"It meant an awful lot and it was important that we backed up last week to show that it was a one-off.

"It wasn't perfect by any means but it's knockout rugby.

"I'm really proud with how we came out in that second half, we tidied up a few things that we spoke about in the changing rooms.

"To come away with the victory, I'm absolutely elated."

Richie Rees
Former Cardiff and Wales scrum-half on BBC Radio Wales

What a game and what a team with the quality to go over and play in Montpellier.

Credit to the Dragons, two away victories in France and in Italy.

They thoroughly deserved the victory tonight.

The key standout performers, Ben Carter, Tinus de Beer, Angus O'Brien, Harrison Keddie the man-of-the-match, Ryan Woodman.

But the graft as a team, that is starting to show where this Dragons team is going with the improvements they're making week-on-week, month-on-month.

Credit to their coaching setup. Well done to the Dragons.

Be still my beating heart.

Dragons, yes, the much-maligned side that for so long have been perceived as by far the weakest of the four Welsh teams, are in a European semi-final.

Richie Rees
Former Cardiff and Wales scrum-half on BBC Radio Wales

That's three fantastic away trips for these Dragons fans.

Paris, Parma and now Montpellier, hopefully to come.

Semi-final place secure!

We can say that with confidence now. A jinking Rio Dyer run has the Zebre defence scrambling and moments later they are pinged in midfield.

From 35 metres out, Angus O'Brien does what Angus O'Brien does.

Another Zebre attack breaks down the Niall Armstrong makes them pay by pulling off a 50-22!

Tension is turning to joy for the Dragons fans in the stands. Their side are on the brink here.

Richie Rees
Former Cardiff and Wales scrum-half on BBC Radio Wales

Excellent play from Elliot Dee.

They get good go forward in that driving lineout. He's really patient.

That's what separates the Dragons in that instance.

They were similar out in Paris last weekend. Two tries from driving lineouts.

It's taken the Dragons to 12 points ahead.

A Zebre drive is held up 15 metres from the Dragons line with a scrum given to the visitors - and the Welsh team's forwards celebrate it like they're on a World Cup winning open top bus parade.

No shortage of emotion out there folks.

Interesting.

After going for the corner on numerous occasions in this half, this time Giacomo Da Re has a shot at the posts from 42 metres.

He nails it too and Zebre are back within a converted try.

Richie Rees
Former Cardiff and Wales scrum-half on BBC Radio Wales

It's great to see so many travelling Dragons fans.

It was the same last week in Paris, and now in Parma.

Ohhh.....they don't like that the home fans.

A long miss-pass from Marco Zanon seemingly puts Jacopo Trulla in for his second try - only for a blast of Luke Pearce's whistle to stop him in his tracks.

On reply, the official got that right - it was slightly forward.

The Dragons still have a 10-point buffer but these are tense moments.

Richie Rees
Former Cardiff and Wales scrum-half on BBC Radio Wales

It's good defence from the Dragons.