West Brom boss Tony Mowbray says the Hawthorns clash against Chelsea will be a true gauge of how far the side have come.
It's top against bottom on Saturday and the Baggies boss says it does not get any tougher for his men, but he is looking for the fans to give them full backing.
Mowbray told the expressandstar "It will be top versus bottom at the weekend and they have just equalled their own record of nine straight victories on the road.
"So it won't get any tougher for us as a gauge. In their last three away games they have won 5-0, 2-0 and 3-0 if you take Roma in the Champions League out of the equation.They are a test in front of us but that's why we're here in the Premier League.
"It's the first of the big four that we're playing at home so we'll see how we approach that having played the others away from home.
"It's a game that we can only look forward to and hope we can be competitive and that it doesn't turn into a game where they are strolling because they are two or three up because they have the ability to do that."