ALAN LEWIS will referee a record seventh Heineken European Cup quarter-final when he takes charge of the match between Saracens and the Ospreys at Vicarage Road on Sunday, April 6th (kick-off 12.30 pm).

The leading Irish official is the only referee to have controlled 50 tournament matches, including nine at the knock-out stages.

English referee Wayne Barnes will be in charge of his first tournament quarter-final when he goes to Le Stadium to control the tie between Toulouse and Cardiff Blues in the second of the Sunday matches (kick-off 4pm).

The previous day, Alain Rolland (Ireland) will referee his fourth quarter-final when London Irish meet Perpignan at the Madejski Stadium, while Welsh referee Nigel Owens will be in charge of the Gloucester and Munster showdown at Kingsholm.

Munster have, meanwhile, announced a 26-strong squad for the Magners League clash with Ulster at Musgrave Park on Saturday. It includes senior internationals Ronan O'Gara, Peter Stringer, Marcus Horan, Tony Buckley, John Hayes, Donncha O'Callaghan Paul O'Connell and Mick O'Driscoll, who were all involved in the final Six Nations game against England.

Also included is Jerry Flannery who returns to Munster senior action for the first time since the European Cup game against Wasps.

MUNSTER SQUAD:D Hurley, S Payne, B Carney, I Dowling, D Howlett, K Lewis, R Tipoki, L Mafi, P Warwick, R O'Gara, T O'Leary, P Stringer, M Horan, T Buckley, F Sheahan, J Flannery, J Hayes, D O'Callaghan, P O'Connell, M O'Driscoll, D Ryan, A Quinlan, N Ronan, J Coughlan, J O'Sullivan, A Foley.