Edinburgh v Munster:MUNSTER'S PRISTINE streak of four wins from four, which only the Ospreys share, allows Tony McGahan throw in 12 match-day players that are 24-years-old or less and a bench that has an average age of 22.5. It's interesting times for Munster and Paddy Butler (20), who is set to make his first start at number eight and is one of 10 changes for this week's game in Murrayfield.

Johne Murphy moves to the right wing in place of Doug Howlett, who is being rested and Scott Deasy comes in at fullback, while Tommy O’Donnell moves to six to accommodate the return of Niall Ronan at openside flanker.

Secondrow Mick O’Driscoll makes his 192nd appearance and captains the young side that now has a winning run of 14 matches. Munster have’nt lost to a Scottish team since October 2009, while Edinburgh has won just one of their last nine clashes. That gives Munster the edge, or does it?

McGahan can afford to gamble and given his lack of frontline bodies must do so. But with Michael Bradley acutely aware of Munster strengths all the way along the line, this could be a weekend where the ninth-placed team on the table claims an important scalp.

EDINBURGH: J Thompson; L Jones, M Scott, J King, T Visser; G Hunter, G Laidlaw; K Traynor, S Lawrie, L Niven; G Gilchrist, S Cox; D Denton, R Grant, S McInally. Replacements: A Walker, R Hislop, S Knight, E Lozada, H Watson, C Leck, P Godman, T Brow.

MUNSTER: S Deasy; J Murphy, T Gleeson, L Mafi, D Hurley; I Keatley, P Stringer; W du Preez, D Fogarty, J Hayes; D Foley, M O'Driscoll; T O'Donnell, N Ronan, P Butler. Replacements: Sherry, J Ryan, S Archer, I Nagle, P O'Mahony, D Williams, D Barnes, S Zebo.

Referee: L Hodges (Wales).

Verdict: Home win.