Munster need to get a bonus point win away to Edinburgh to boost their chances of reaching the Heineken Cup quarter finals.

The two time winners go into the game at Murrayfield in third place in Pool 1 and seven points behind leaders Saracens.

Munster second row Donncha O'Callaghan knows they cannot afford any slip ups: 

Kick off at Murrayfield is 12.45.

Elsewhere today, the Ospreys host Leicester while Toulose face Treviso

Both those games kick off at 3.00pm.

©INPHO/JamesCrombie