Robbie Henshaw has opted to leave Irish province Connacht for Pro 12 rivals Leinster this summer, on signing his first Irish Rugby Football Union (IRFU) national contract.
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.
Robbie Henshaw handed Ireland an RBS 6 Nations fitness boost as Connacht thrashed Enisei-STM 47-5 to qualify for the European Challenge Cup quarter-finals.
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.
Nick Williams' 76th-minute try proved to be the deciding score as Ulster ended Connacht's unbeaten home record this season, winning a closely-fought Guinness PRO12 derby 10-3 at the Sportsground.
Newcastle Falcons put themselves back in contention for the European Challenge Cup’s quarter-finals with a bonus point victory over Connacht on Sunday.
Cardiff staged a stunning comeback to claim a 37-27 bonus-point win over Montpellier to keep hopes of qualifying for the European Challenge Cup's knockout stages alive.
European Rugby Challenge Cup champions Gloucester began their defence with a 23-10 win over Zebre while elsewhere London Irish beat Agen, Cardiff Blues thrashed Calvisano, Worcester beat La Rochelle and Connacht beat Enisei-STM.
Two tries from Darren Dawidiuk and Jonny May in the last five minutes of extra time gave Gloucester a 40-32 win over Connacht and a place in next week's Champions Cup play-off final.
There were wins for Cardiff Blues, Exeter Chiefs, Gloucester and Stade Francais as the second round of European Rugby Challenge Cup fixtures drew to a close today.
Leinster's greater strength in depth helped them complete a festive derby double at the Sportsground as they got the better of a youthful Connacht side with a 16-8 triumph.