Johann van Graan insisted he has no concerns over Munster's warm-up routine after Conor Murray became the latest player to pull out of a game minutes before kick-off. 

Murray appeared to hurt his neck in a drill ahead of Saturday's win against Connacht at Thomond Park. The Ireland scrum-half trained fully today and should be fine for the weekend's Guinness Pro14 quarter-final against Benetton, but it was just the latest in a few warm-up setbacks for the province this season.

Earlier this month, Keith Earls dropped out before the clash with Cardiff Blues while Chris Farrell was withdrawn after the warm-up for the Heineken Champions Cup pool clash with Castres before Christmas.

Head coach Van Graan admitted Munster looked at their methods but they can't see any discernible pattern in the nature of the injuries.

"We've thought about it," he told RTÉ Sport's Michael Corcoran.

"We looked at all the individual instances. It happens to all teams all over the world. It's just in our case it's happened five times this season, and it's been all for different reasons.

"If it was all the same thing [every time] you could possibly look at it but we've looked at all the individual cases.

"[Murray's injury] was in the last breakdown before we went in. It was a counter-ruck and Conor took a knock to the head. That might happen in the way you warm up in your defence or your rucking drill. There's no way you foresee these things. Otherwise you wouldn't warm up.

"You warm up for a rugby game, there is going to be contact. You've got to warm the body up for what's about to happen. We're happy with our process."

Looking ahead to Saturday's last-eight showdown with Kieran Crowley's much-improved Benetton, Van Graan added: "Kieran has done fantastically well at Treviso. We as a group had a good look at them this morning.

"You don't get into the Pro14 play-offs for nothing. Teams that we respect so much, a team like the Scarlets, a team like Edinburgh, they're not even in the play-offs.

"Treviso deserve their place. We've got to give them all the respect they deserve. If we want to get into a semi-final against Leinster we've got to beat Treviso. It's a once-off. It's not about anything else except who gets the result on Saturday. 

"We've worked so hard all season to be in this position. We feel we've had a very good Pro14 campaign over 21 weeks. There's been so many improvements in terms of the small details.

"Now, if you want to win a trophy, you've got to win three games in a row starting this weekend. If you don't win, your season is finished for the year.

"Everybody has an opportunity for selection. That's been proven all season; I think we've used 55 players. There's a few 50-50s and guys have played themselves into the selection frame. We'll take our time through the week as a coaching staff and make our final calls later."