"Sami has a problem with his knee. The feedback we have is that it isn't serious but he won't train for a couple of days," said Rafael Benitez.
"I was talking with Sami yesterday and he was telling me he will be ready for the next game. He has already started working very hard to be fit again.
"It was a good decision by the Finland national team to let Sami come back to us. They were very sensible and he is now working with our physios."
