West Bromwich Albion boss Steve Clarke rates their clash with Manchester City the biggest test of their season.
After beating the likes of Liverpool and Everton on home soil already this season, the Scot knows they have an even bigger challenge on their hands on Saturday.
"It's a great game for us," he said. "I think our home form has been excellent - in fact our form in general has been excellent - and we look forward to another challenge, probably the biggest challenge so far because Manchester City are the champions and we have to test ourselves against them, which is a great challenge for the players.
"I think it's the biggest test we've faced at home so far this season. We've not had easy home games. If you look at the first couple Liverpool and Everton were difficult games, then QPR came here at a moment when they could have been dangerous - and we managed to win that one as well as beating Reading, which wasn't easy.
"But the champions are the champions. These are the games you have to relish and look forward to, and we do."