rbs6nations.com > Ireland
Murray has got the better of Scotland's Greig Laidlaw and Wales' Mike Phillips in Ireland's opening two RBS 6 Nations victories but he's expecting an even sterner test against a resurgent Care.
The Harlequins scrum-half has started both matches for England, inspiring a fightback against France before leading the charge in the 20-0 victory over Scotland.
Care has not always been first choice scrum-half under Stuart Lancaster but his form for Harlequins forced his head coach's hand - and Murray admits Ireland, who have named the same starting XV that swept aside Wales so emphatically, must be switched on from the outset.
"He's as dangerous as any in the world with the ball in hand," said Murray.
"He's a threat from anywhere, he'll try anything from anywhere and he has the ability to pull off some really spectacular plays. So he's definitely a player we'll have to keep an eye on.
"Whoever's in the line of defence, whoever's closest to the ruck will have to watch him closely; he likes to snipe in and around there.
"He'll try little dinks, he'll throw offloads, and whoever's in that front line has got to be switched on."