It was something of a hybrid weekend of rugby as the postponed round one fixtures from the European Champions cup wedged themselves into a weekend of domestic Pro 12 action.

Among the re-arranged Champions cup games was Glasgow Warriors' hugely anticipated trip to Paris to take on Racing 92, whilst Edinburgh were aiming to ascend to the summit of the Pro 12 table as they welcomed Italian strugglers Treviso to Murrayfield.

Things didn't get any easier for Gregor Townsend and his Warriors squad this week. Just seven days after their second defeat in a row to rivals Edinburgh they faced one of the richest and most in-form sides in world rugby at Stade Yves de Manoir, who included world player of the year Dan Carter in their starting XV.

Same old mistakes

Despite taking the lead through a Finn Russell penalty in the first half, Glasgow continued to frustrate their coach and their travelling fans by undoing seemingly every facet of positive play with an unforced handling error or infringement, which thwarted their ability to gain any sort of foothold in the contest.

Classy Carter

Russell, playing at inside centre, then missed a second penalty attempt before fullback Stuart Hogg also failed to bisect the uprights which would've given the visitors a commanding 0-9 lead.

But instead their star-studded opponents, led by the ubiquitous and unparalleled Carter, tied the scores just before the half hour mark before playing a significant part in the Parisian's opening try which was scored by prop Ben Tameifuna which Carter converted for 10-3.

Death by maul

Racing's not-so secret weapon was revealed to be their driving maul led by their gargantuan front row, and it was from this set piece that they rumbled over for consecutive tries from hooker Dimitri Szarzewski and loosehead Eddy Ben Arous which sealed a comfortable win.

Second row Manuel Carizza's late score clinched a bonus point, but the final score line flattered the Parisians somewhat.

Positives from Paris

Despite being comprehensively defeated on the scoreboard, the Warriors actually fronted up pretty well in the close exchanges, particularly the scrum where young prop Zander Fagerson enhanced his already burgeoning reputation with another fine display. It may not be that much of a surprise for him to be given a call-up from Vern Cotter later this month.

Second-row Leone Nakawara had a below-par afternoon by his colossal standards, but the big flexible Fijian scored a clever try off an attacking lineout which Russell converted to make the score-line less of a battering, but uncharacteristic handling errors blighted the big man's display.

Where now for Warriors?

The defeat leaves Glasgow on the cusp of elimination from this season's competition, sitting as they do, on nine points from four matches, one behind Northampton Saints whom they face on Sunday at Franklin's Gardens.

Another defeat on Sunday, at a ground where they narrowly lost in 2012, would end any hopes of a pool 3 miracle, and it is difficult to see how Townsend can turn this around and defeat his former side, knowing that he will be without several of his frontline stars including centres Peter Horne and Mark Bennett who are both injured.

Tough road ahead

Based on how the reigning Pro 12 champions are playing currently and after a quick glance at the fixture list, it's difficult to see where the Warrior's next win is going to come from, such has been their festive slump in form.

Their December double over the Scarlets seems like an age ago, and to compound the misery, it's still unclear whether or not they'll be able to host their biggest match of the season against Racing 92 in round six, as Scotstoun is still currently under water.

Something needs to change and quickly otherwise this could turn into a season to forget for Glasgow and they may even find themselves in a scrap for a Champions cup place at the end of the season.

Champions Cup wrap

The remainder of the postponed round one fixtures were completed this weekend as Clermont Auvergne saw off compatriots Bordeaux-Begles 10-28, whilst Stade Francais comfortably overcame Munster 27-7 at Stade Jean Bouin.

Ulster completed quite possibly the greatest-ever comeback from 23-0 down to defeat French side Oyonnax 23-24 thanks to a monstrous late penalty from Paddy Jackson, whilst reigning champions Toulon managed to sneak past Bath in pool 5 with a 12-9 victory in the Cote 'd azur.

Edinburgh's Pro 12 success

The Gunners maintained their winning run with another home win, this time over Italian strugglers Treviso, to move up to third place in the Pro 12 table.

Winger Damien Hoyland, who missed both 1872 cup clashes, claimed the man of the match award with a terrific double either side of a penalty try in a routine victory for the Scots who return to Challenge cup action next week.

Alan Solomons' side bossed the contest as expected, but it was a sobering occasion compared to the recent wins over Glasgow at Murrayfield.

Less than 4,000 braved the chilly capital air on Friday night, but they were rewarded with a professional, albeit workmanlike performance from their side who can now take great confidence into their European fixtures in the coming weeks.

Satisfied Solomons

"I'm pleased to get the win but disappointed not to get the bonus point", Solomons admitted afterwards, knowing that the games will only get tougher from here on in.

"After the two massive wins (over Glasgow) we dropped our level a bit, which was expected I suppose", he continued, addressing the mediocre performance.

Edinburgh can now focus Friday's visit of Agen knowing that a win will give them a great chance of progressing to the knockout stages, and will likely be Scotland's sole representatives in European rugby post-Six Nations.

Pro 12 wrap

Scarlets went back to the top of the table with a controversial 21-19 win over Connacht, whilst Leinster put their recent woes behind them and registered an impressive 9-22 win away to in-form Ospreys

Glasgow's visit to Zebre and Cardiff Blues' match against Munster will be re-scheduled for later in the season.