Leinster put its visa nightmares behind it to earn an impressive 31-10 bonus-point victory over Southern Kings and maintain its 100 per cent record in the Pro14.
Ahead of its clash in Port Elizabeth the Irish side was denied the services of captain Isa Nacewa and Jamison Gibson-Park after they were denied entry to South Africa.
Rather than let the episode unsettle the team, Leinster turned on the style at Nelson Mandela Bay Stadium.
Second-half tries from Rory O'Loughlin, Jack Conan, Joey Carberry and Dave Kearney sealed what turned out to be a straightforward win for the visitors, while the Kings' baptism of fire in the competition continued with a third successive defeat.
The Cheetahs avoided a similar fate against Zebre, though, as they picked up the first win for a South African franchise in the competition.
Zebre, which only won three times last season as it finished bottom in the Pro12 format, threatened to cause an upset as it moved into an 11-0 lead after 16 minutes, but it relinquished that advantage and never regained it.
Eight tries for the Cheetahs saw them pull well clear of their Italian visitors in a highly entertaining match that finished 54-39 to the hosts in Bloemfontein.
That bonus-point win lifted the Cheetahs away from the foot of Group A, a position shared by Zebre and Cardiff Blues, the latter having slumped to a third defeat of the new campaign.
A 20-19 win for Glasgow Warriors at Cardiff Arms Park keeps the Blues on one point from three matches, while group leader Munster edged its meeting with Ospreys 21-16, a result that left the Welsh side's boss Steve Tandy disappointed.
"Our application and attitude wasn't good enough," he said. "I don't think we fronted up in the first half.
"Our movement, speed into position – you name it, I don't think we delivered anything that we want to be as an Osprey in the first half. We'll have a few harsh words ... but ultimately we know we've got to start winning games pretty quickly."