Rugby union’s brand new competition – What to expect from the PRO14 Rainbow Cup?

Leinster won the Guinness PRO14 (Donall Farmer/PA)
A brand new rugby union competition kicks off on Friday when the Guinness PRO14 Rainbow Cup gets under way.
Intended to pit the PRO14’s Irish, Welsh, Scottish and Italian sides against the best South Africa has to offer, the competition will culminate in a final on June 19.