Scarlets Coach Gareth Jenkins, who assisted Northern Hemisphere Team Coach Clive Woodward on Saturday, said: "We're optimistic Gareth will be okay for Murrayfield. It's a soft-tissue injury, he's basically taken a stamp on it and he's uncomfortable, but the medical people here aren't too concerned."
Cooper played well in a losing effort as the Southern Hemisphere XV romped to a 54-19 victory, with Australian fullback Chris Latham starring with a try double. If Cooper doesn't recover in time for the trip to Edinburgh, his place in the Wales twenty-two will go to the man who replaced him at Twickenham; Scarlets giant Mike Phillips.
Blues prop John Yapp had a good run-out on Saturday, with backrower Jonathan Thomas and centres Ceri Sweeney and Mark Taylor showing some good touches in the free-flowing game in front of 40,000 fans.