Adam Jones received a standing ovation on his last appearance for Cardiff Blues who recorded a 29-5 win over Zebre.
Connacht their hopes of European Champions Cup qualification alive with a 40-10 bonus point win over Zebre.
With one round remaining and the top four sides split by a point there is still everything to play for in the PRO12.
Stuart Barnes says that players should not be banned for accidental acts after Iain Henderson was red-carded for Ulster.
Zebre skipper Mauro Bergamasco will make his final home appearance when they host Connacht on Saturday.
Newcastle have announced the signing of Italy international winger Giovanbattista Venditti.
Watch all the highlights of this weekend's Guinness PRO12 action.
Edinburgh kept their top-six hopes alive with a 37-0 hammering of Guinness PRO12 strugglers Zebre at Murrayfield.
More of the games that matter on Sky Sports
Don't miss fight night on Saturday
Watch the action with a Day or Week Pass
Up to 50% off Baa-Baas tickets
For all the latest news, features and videos