He said: What they've done as a football club for a number of years now is very impressive, Thomas (Frank), his staff, the players, the whole club, they deserve a lot of credit for what they've done. They've grown into this league and have looked like a really good team for a long time.
"I know they've had difficult moments this season, but probably like us will look at games where they've left points out there at times.
"You look at their performance against Manchester United recently and it doesn't look like a team that's struggling, so we know what we're coming up against. They're a very good team, they're pretty consistent and they're a team that do the basics things very well, as well as anyone. They value that sort of stuff, so I've been really impressed in difficult circumstances with a number of teams this year and obviously they're one of them."