The word is its a niggle not full injury ,if this was a bigger game ie Real one he'd play or be in the squad .
I would suggest as he ages he will use more of this precautionary injury moments , he's got a great chance of being big at Madrid even number 1 ,so he will protect that.
I see a likeness in Giggsy in his latter years , even for Utd ,he was rested ,to prelong his playing career.
Big chance for he Welsh youngsters , and see how Wales cope without Bale against quality opposition .