Match officials to April 1

Craig Joubert takes charge of Saturday's eagerly awaited Super Rugby derby between the Stormers and Bulls in Cape Town.

Craig Joubert takes charge of Saturday's eagerly awaited Super Rugby derby between the Stormers and Bulls at Newlands in Cape Town.

Up north, the PRO12, Aviva Premiership and Top 14 are all reaching crunch stages of the season as teams enter the final stretch towards a play-offs spot.

Super Rugby

Highlanders vs Rebels in Invercargill
Referee: Marius Jonker (South Africa)
Assistant referees: Vinny Munro (New Zealand), Matthew Muir (New Zealand)
Television match official: Kane McBride (New Zealand)

Hurricanes vs Cheetahs in Wellington
Referee: Ian Smith (Australia)
Assistant referees: Chris Pollock (New Zealand), Richard Kelly (New Zealand)
Television match official: Mike Fraser (New Zealand)

Chiefs vs Waratahs in Hamilton
Referee: Lourens van der Merwe (South Africa)
Assistant referees: Jonathon White (New Zealand), Glen Jackson (New Zealand)
Television match official: Shane McDermott (New Zealand)

Brumbies vs Sharks in Canberra
Referee: Keith Brown (New Zealand)
Assistant referees: Angus Gardner (Australia), James Leckie (Australia)
Television match official: Matt Goddard (Australia)

Force vs Reds in Perth
Referee: Garratt Williamson (New Zealand)
Assistant referees: Steve Walsh (Australia), Andrew Lees (Australia)
Television match official: George Ayoub (Australia)

Lions vs Crusaders in Johannesburg
Referee: Jonathan Kaplan (South Africa)
Assistant referees: Jaco Peyper (South Africa), Reuben Rossouw (South Africa)
Television match official: Johann Meuwesen (South Africa)

Stormers vs Bulls at Newlands
Referee: Craig Joubert (South Africa)
Assistant referees: Stuart Berry (South Africa), Cobus Wessels (South Africa)
Television match official: Shaun Veldsman (South Africa)

Pro 12

Edinburgh vs Scarlets
Referee: Peter Fitzgibbon (Ireland)
Assistant referees: Peter Allan (Scotland), Graeme Marshall (Scotland)
Assessor: Fergus Neil (Scotland)

Glasgow vs Cardiff
Referee: George Clancy (Ireland)
Assistant referees: Rob Dickson (Scotland), Adrian Graves (Scotland)
Television match official: Jim Yuille (Scotland)
Assessor: Gordon McMurray (Scotland)

Ulster vs Aironi
Referee: Neil Paterson (Scotland)
Assistant referees: Dudley Phillips (Ireland), Johan Carvill (Ireland) (Ireland)
Television match official: Peter Ferguson (Ireland)
Assessor: Brian Stirling (Ireland)

Ospreys vs Benetton Treviso
Referee: Alain Rolland (Ireland)
Assistant referees: Tim Hayes (Wales), Ian Davies (Wales)
Television match official: Tony Rowlands (Wales)

Munster vs Leinster
Referee: Nigel Owens (Wales)
Assistant referees: David Wilkinson (Ireland), Michael Black (Ireland)
Television match official: Marshall Kilgore (Ireland)
Assessor: John Sheehan (Ireland)

Newport Gwent Dragons vs Connacht at Rodney Parade
Referee: Giuseppe Vivarini (Italy)
Assistant referees: James Jones (Wales), David Jones (Wales)
Television match official: Neil Ballard (Wales)

Aviva Premiership

Leicester Tigers vs Worcester Warriors
Referee: Wayne Barnes
Assistant referees: Paul Dix Nigel Carrick
Television match official: David Matthews

Newcastle Falcons vs Sale Sharks
Referee: David Rose
Assistant referees: Don Helme Alan Hughes
Television match official: David Hudson

Exeter Chiefs vs London Irish
Referee: David Pearson
Assistant referees: Paul Burton, Ashley Rowden

Saracens vs Harlequins
Referee: Greg Garner
Assistant referees: Stuart Terheege, Robin Goodliffe
Television match official: David Grashoff

Bath vs Northampton Saints
Referee: Martin Fox
Assistant referees: Peter Huckle, Andrew Pearce
Television match official: Geoffrey Warren

London Wasps vs Gloucester
Referee: Andrew Small
Assistant referees: Alan Biggs, Gareth Copsey
Television match official: John Burtenshaw

Top 14

Racing Métro vs Castres at Stade Yves Du Manoir (Colombes)
Referee: Cédric Lafon
Assistant referees: Pascal Gauzere, Jean-Michel Schutz
Television match official: Gilles Cogne

Biarritz vs Clermont at Parc Des Sports d'Aguilera
Referee: Mathieu Raynal
Assistant referees: Cédric Marchat, Thomas Dejean
Television match official: Hervé Dubes

Perpignan vs Bayonne at Stade Aimé Giral
Referee: Franck Maciello
Assistant referees: Akim Hadj Bachir, Régis Gabard
Television match official: Bruno Bessot

Lyon vs Bordeaux-Bègles at Matmut Stadium
Referee: Jérôme Garces
Assistant referees: Christophe Dutreuilh, Patrick Beuriot
Television match official: Eric Gauzins

Brive vs Toulon at Stade Amédée Domenech
Referee: Laurent Cardona
Assistant referees: Patrick Pechambert, Sébastien Hebert
Television match official: Jean-Pierre Pellaprat

Montpellier vs Agen at Stade Yves Du Manoir (Montpellier)
Referee: Sébastien Cloute
Assistant referees: Jean-Luc Rebollal, Jérôme Lamarque
Television match official: Eric Gonthier

Stade Français vs Toulouse at Stade de France (Saint-Denis)
Referee: Romain Poite
Assistant referees: Christophe Berdos, Pascal Ubeda
Television match official: Denis Gillet

Tokyo Sevens
Referees: Federico Anselmi (Argentina), Akihisa Aso (Japan), Jason Jaftha (South Africa), James McPhail (New Zealand), Anthony Moyes (Australia), Matthew O'Brien (Australia), Luke Pearce (England), Alexandre Ruiz (France)