Full time: Dragons 28-38 Ospreys
Home side scored through Elliot Dee and a penalty try to lead 14-12 half-time
Ross Moriarty and Keelan Giles touched down for Ospreys
Sam Parry and Morgan Morris scored twice for visitors after break
Dee again and Anzelo Tuitaviki grabbed second half tries as hosts earnt two losing bonus points
Glasgow Warriors beat Connacht 36-19 in URC's other match
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Dragons 28-26 Ospreys
Both sides will finish with hefty penalty counts.
Dragons are penalised for offside after lock Seb Davies catches a knock-on from an aerial kick.
Ospreys can't make it count this time with new hooker Efan Daniel's throw deemed to be wonky.
Anzelo Tuitaviki (con: Tinus de Beer)
Image source, Huw Evans Picture AgencyNothing dull about that score!
Dragons earn penalty advantage but keep playing with a flowing move that is finished off by Tonga wing Tuitavuki after a break by Angus O'Brien and offload by Che Hope.
Tinus de Beer puts the Dragons back in front with the conversion.
Dragons also have their four-try bonus.
Sam Parry (con: Dan Edwards)
Cut and paste.
Ospreys respond with hooker Parry getting his second of the night.
The visitors have their four-try bonus and Dan Edwards gives them a five-point lead with an excellent conversion.
Dragons 21-19 Ospreys
You can't do that, Dragons.
Angus O'Brien tries to play out from the 22 and Dragons then get penalised at the breakdown.
Ospreys back to the corner.
Dragons are penalised for the early shove and Ospreys will kick the resulting penalty out for another crack, with the home side given a ticking off.
Elliot Dee (con: Tinus de Beer)
Image source, Huw Evans Picture AgencyAnother driving line-out try, but Dragons supporters won't mind.
Elliot Dee gets his second of the night - and fifth of the season - and then Tinus de Beer adds the extras.
Ospreys back to 15 men.
Josh Ioane (Con: Frawley)
The visitors are not done yet as they finally get back down the other end and exert some pressure.
Connacht punch holes in the Glasgow defence until Josh Ioane finds the gap to go through and score.
Ciaran Frawley nails the conversion and the Irish side have a little hope of getting back into this.
Dragons 14-19 Ospreys
Famous last words! Ospreys done for holding on from the restart and are back under pressure, with two minutes left of the sin bin.
Tinus de Beer kicks to the 22.
Dragons do a neat move to the front and earn another penalty after Keelan Giles' strong tackle on Che Hope.
Sam Parry (con: Dan Edwards)
Image source, Huw Evans Picture AgencyA second former Dragon goes over from a driving line-out, with hooker Sam Parry at the back of a patient maul.
Edwards converts and this has been textbook management of a yellow card.
Dragons 14-12 Ospreys
Lalakai Foketi has made a heck of an impact after coming on.
The Australia centre absolutely clatters into the Dragons defence as Ospreys play on with penalty advantage.
They eventually kick that penalty to the corner as they eat into the sin bin.
That is followed by another penalty, as they move to five metres out.
Josh McKay (Con: Horne)
Glasgow get their bonus-point try and it really is a thing of beauty.
Dan Lancaster spots Jamie Dobie in space out wide and dinks a delightful cross-field kick straight into his arms.
Dobie then shows great skill to gather and immediately grubber into the path of the oncoming Josh McKay to go in for a fabulous score.
That was vintage Glasgow, and they now lead by 19.
Dragons 14-12 Ospreys
Dan Edwards gets us back under way at Rodney Parade.
Glasgow Warriors 19-7 Connacht
Second half is under way at Scotstoun.
HT: Dragons 14-12 Ospreys
Welsh squads don't have the depth of their URC rivals, so teams need luck with injuries.
Sadly, Dragons lost props Rodrigo Martinez and Rob Hunt in that first half while Ospreys saw Kieran Hardy and Marika Koroibete forced off.
It's a round of European action next weekend, followed by two more games in the URC before the November Tests.
The Ospreys are first to come back out here at Rodney Parade. The 14-man visitors will kick off.
HT: Dragons 14-12 Ospreys
Just the two URC games tonight but there is plenty of action tomorrow.
The day kicks off in South African as Bulls play Lions (12:30 BST) and then in the afternoon it is Stormers versus Sharks and Zebre against Edinburgh (both 15:00 BST).
Following that, Scarlets will target a first win at home to Benetton and Ulster welcome Munster (both 17:30 BST), before we round things off with Leinster against Cardiff at their revamped Laya Arena (19:45 BST).
HT: Dragons 14-12 Ospreys
"We've just got to regroup and go again in the second half," says Dragons captain Ben Carter to S4C in an extremely short interview as he makes his way to the changing room.
Dragons came out firing for the second half against Scarlets and need to do the same to make their man advantage count.
Ospreys are known for staying in the fight and will need to show resolve.
HT: Dragons 14-12 Ospreys
A big end to the half there for Dragons, who reap the rewards of going back to the corner.
Their driving line-out strikes for the second time and the home side have a slender advantage at the break, plus 10 minutes to play against 14 men after Moriarty's sin-binning.
Gregor Hiddleston (Con: Horne)
Make that a hat-trick of maul tries for Glasgow!
Connacht prop Sam Illo is sent to the bin for illegally halting a maul rolling towards the try-line.
He need not have bothered as Warriors simply go to the corner again, set the maul in motion and Connacht are once again powerless to defend it.
Gregor Hiddleston gets his second try of the night, George Horne pops over the extras and the referee blows the half-time whistle.
Penalty
Image source, Huw Evans Picture AgencyOspreys stop the drive illegally and referee Robbie Jenkinson goes under the posts.
it's a double whammy with a yellow card shown to flanker Ross Moriarty.
Dragons 7-12 Ospreys
Dragons stress the Ospreys defence as they look to strike back - although Foketi tests Aneurin Owen's ribs with a massive hit.
The home side stay calm in possession to earn penalty advantage and keep plugging away to get into the 22.
Another penalty after a lung-busting attack. Dragons opt for the corner with the clock in the red.
Keelan Giles
Image source, Huw Evans Picture AgencyThat is sensational by Ospreys - made in Australia, finished by Wales.
Former Wallabies captain Liam Wright comes up with a brilliant steal to end a Dragons attack and then Lalakai Foketi snipes at a ruck before kicking ahead.
Wing Giles gathers and then sidesteps his way over.
A brilliant try after turning defence into attack.
Edwards misses the conversion from wide on the left.
