United Rugby Championship Round 1 match officials appointment listed below. Please note, there has been some changes since yesterday's match previews.

Due to a calf injury, Adam Jones has been replaced by Sam Grove-White to referee Dragons v Ospreys fixture on Sunday 26th September. Elgan Williams steps in as AR1 for Cardiff v Connacht on Friday 24th, while Ian Kenny steps in as AR1 for Edinburgh v Scarlets on Saturday 25th.

There are milestones for Welsh official Ben Whitehouse makes his 75th league appearance while Irish referee Frank Murphy makes his 50th league appearance.

FRIDAY, 24 SEPTEMBER

Zebre v Emirates Lions – KO 17.35 IRE/UK 18.35 ITA/SA

Stadio Sergio Lanfranchi, Parma

Referee: Chris Busby (IRFU, 10th league game)

AR1: Riccardo Angelucci (FIR), AR2: Federico Boraso (FIR),

TMO: Brian MacNeice (IRFU)

Live on: OTT, SuperSport and Premier Sport

Cardiff v Connacht – KO 19.35IRE/UK 20.35 ITA/SA

Cardiff Arms Park

Referee: Andrea Piardi (FIR, 15th league game)

AR1: Elgan Williams (WRU), AR2: Steff Edwards (WRU),

TMO: Alan Falzone (FIR)

Live on: BBC Wales, TG4 and Premier Sport

Ulster v Glasgow – KO 19.35 IRE/UK 20.35 ITA/SA
Kingspan Stadium, Belfast
Referee: Ben Whitehouse (WRU, 75th league game)

AR1: PeterMartin (IRFU), AR2: Andrew Cole (IRFU),

TMO: Ian Davies (WRU)
Live on: Premier Sport

SATURDAY 25 SEPTEMBER

Benettonv DHL Stormers – KO 13.00 IRE/UK 14.00 ITA/SA
Stadio Comunable Di Monigo, Treviso
Referee: Frank Murphy (IRFU, 50th league game)

AR1: FedericoVedovelli (FIR), AR2: Alex Frasson (FIR),

TMO: Brian MacNeice (IRFU)
Live on: Mediaset, SuperSport and Premier Sport

Leinsterv Vodacom Bulls – KO 17.15 IRE/UK 18.15 ITA/SA

Aviva Stadium, Dublin
Referee: Mike Adamson (SRU, 55th league game)

AR1: AJJacobs (SARU), AR2: Daniel Carson (IRFU),

TMO: Neil Paterson (SRU)
Live on: TG4, SuperSport and Premier Sport

Edinburgh v Scarlets – KO 17.15 IRE/UK 18.15 ITA/SA
Edinburgh Rugby Stadium

Referee: Andrew Brace (IRFU, 67th league game)

AR1: Ian Kenny (SRU), AR2: Graeme Ormiston (SRU)

TMO: Olly Hodges (IRFU)

Live on: Premier Sport and S4C

Munster v Cell C Sharks – KO 19.35 IRE/UK 20.35 ITA/SA

Thomond Park, Limerick

Referee: Craig Evans (WRU, 23rd league game)

AR1: Marius vander Westhuizen (SARU), AR2: Dermot Blake (IRFU),

TMO: Jon Mason (WRU)
Live on: RTÉ, SuperSport and Premier Sport

SUNDAY 26 SEPTEMBER

Dragons v Ospreys – KO 14.00IRE/UK 15.00 ITA/SA

Rodney Parade, Newport

Referee: Sam Grove-White (SRU)

AR1: GwynMorris (WRU), AR2: Tom Spurrier (WRU),

TMO: Sean Brickell (WRU)

Live on: Premier Sport