Connacht came from behind to secure a bonus-point 26-21 victory away to Newport Gwent Dragons on Thursday night, a result that sees them move four points clear at the top of the Guiness Pro12.
A late Paddy Jackson penalty was to prove crucial as Ulster secured a late 17-15 win over Newport Gwent Dragons to send the Irish side top of the Guinness PRO12 table.
Stuart Olding scored a try on his return to action for Ulster as they secured a bonus-point 32-13 Guinness Pro12 victory over Benetton Treviso at the Stadio Monigo.
Edinburgh have been handed a significant boost ahead of their Guinness Pro12 clash with Cardiff Saturday's after Cornell Du Preez and Neil Cochrane both agreed to extend their time in the Scottish capital.
Glasgow flanker Ryan Wilson has escaped suspension after the charge that he grabbed the testicles of Northampton scrum-half Lee Dickson were dismissed.
A late penalty from Steven Shingler clinched a hard-fought 21-19 victory over Connacht at Parc y Scarlets to send the hosts back to the top of the Guinness Pro12.