Jenkins feels a sold-out Arms Park could give the Blues the edge

"This is the biggest challenge, they're the European champions and we have to play at our best to even get close," he said ahead of Sunday's Arms Park game.

"We know they'll attack up front and be really physical. The contact area will be mad and we must stand up to them as a pack and put our game together.

"We know what's coming - it's just hard to combat their quality players."

If Jenkins expects brutality from fellow Lions Test players like Paul O'Connell and Donncha O'Callaghan up front, he has joined the chorus of Blues players singing the praises of Munster's back-line controller, fly-half Ronan O'Gara.

We're confident at the Arms Park and haven't lost there since January Gethin Jenkins

"O'Gara is crucial to the success of both Munster and Ireland," Jenkins told BBC Sport Wales.

"He's always there pulling the strings, playing the forwards off him and kicking for territory.

"If we're going to have a chance we have to pressurise him all game."

Despite his obvious respect for Munster, Jenkins feels that a sell-out crowd at Cardiff Arms Park could be the edge that his side needs.

"It's great for the boys to know that they're playing in front of a full house," said Jenkins.

"It's a must-win game for us if we're going to progress in this tournament, but we're confident at the Arms Park and haven't lost there since January."