Newport Gwent Dragons (6) 16
Try: Aled Brew Con: Tovey Pens: Tovey 2 Drop-goals: Tovey
Glasgow Warriors (6) 23
Tries: Gregor, van der Merwe 2 Con: Gregor Pens: Jackson 2
Dragons wing Aled Brew scores his second European try of the season
Glasgow secured their first Heineken Cup away win for two years with a scrappy triumph in the Pool Six dead-rubber at Newport Gwent Dragons.
An Aled Brew try and an 11-point kicking haul from Jason Tovey had put the Welsh hosts in a commanding 16-6 lead with half-an-hour remaining.
But Glasgow produced a gritty fightback rallied by a Colin Gregor try.
Canadian wing DTH van der Merwe touched down twice to condemn the Dragons to a 10th successive European defeat.
Glasgow's last Heineken Cup win on the road was at French giants Toulouse in 2009 and they finished this European campaign on a high at Newport.
The Dragons, however, suffered their first whitewash of pool defeats this year and join Italian side Treviso as the only team not to register a win in the Heineken Cup this season.
But coach Paul Turner would be disappointed his Dragons were defeat after throwing away a healthy lead.
Glasgow showed little appetite in the opening 40 minutes as they failed to get into the Dragons 22 throughout the first half.
However, the boot of fly-half Ruaridh Jackson was good enough to keep the Scotsmen level at the break.
Jackson fired over an early penalty from 40 metres to give Glasgow the early lead but that was soon cancelled out as home fly-half Tovey dropped a goal from 20 metres.
Dragons wing Brew - who, like Tovey, was hoping to catch the eye of Wales coach Warren Gatland watching from the stand - had the best chance of scoring tries, not once but twice within a matter of minutes.
He ran into a Glasgow defensive wall on their line but, after consultation with the video referee, the possible touchdown was ruled out.
Moments later, he did touch the ball down clearly but the scoring pass from Tovey was ruled to have gone forward.
Jackson increased the Glasgow lead on the half-hour with a 45-metre penalty but Tovey again countered just before and after the break to give the Dragons a three-point advantage.
Brew finally got his reward as replacement centre Pat Leach kicked into the Glasgow try area for the lively wing to chase and touch down - a score, given this time by the fourth official, that Tovey converted from the touchline.
The video referee was having a busy match as Glasgow drove forward to the home line for scrum-half Gregor to dummy a pass out but go down the left blindside and, according to the fourth official, just get the ball down.
For all their inability to make meaningful attacks in the first half, Glasgow managed another on 62 minutes.
Van der Merwe raced 22 metres to the line, was turned over by a couple of defenders but, again after referral to the video referee, scored the try.
And he did it again when he skipped past some weak tackling to run in unopposed to secure the win for the Warriors.
Newport-Gwent Dragons: Harries, Hughes, Riley, Smith, A. Brew, Tovey, W. Evans, Price, Willis, Castle, Charteris, Sidoli, Lydiate, G. Thomas, Faletau.
Replacements: Leach for Riley (37), M. Jones for Tovey (76), S. Jones for Willis (56), Morgan for Sidoli (61), L. Evans for Lydiate (75). Not Used: Robinson, Palmer, Leadbeater.
Glasgow: Stortoni, Shaw, Aramburu, Murchie, van der Merwe, Jackson, Gregor, Welsh, Hall, Low, Muldowney, Kellock, Harley, Vernon, Wilson.
Replacements: Pyrgos for Stortoni (60), Horne for Aramburu (47), Grant for Welsh (47), Thomson for Hall (46), Tkachuk for Low (62), Fusaro for Harley (61), Burke for Vernon (78). Not Used: O'Hare.
Referee: John Paul Doyle (RFU).