Tony Pulis is wary of facing the reigning Premier League champions despite their slow start to the season.
Chelsea travel to The Hawthorns on Sunday looking for their first win of the campaign after being humbled 3-0 at title rivals Manchester City last week.
The Baggies beat Chelsea 3-0 at home at the end of last season but, even after their stuttering opening, Pulis dismissed suggestions the champions are in trouble.
Chelsea manager Jose Mourinho has lauded the ability of West Brom boss Tony Pulis to get the best out of his players and teams.
Mourinho takes his Premier League champions to The Hawthorns for Monday's penultimate game of the season, with Albion safe after Pulis' arrival.
"If I own an English club, I sign Tony Pulis. It's as simple as that," Mourinho said.
"He's a guarantee to achieve what the club wants.
"He never managed a club that wants to be champion, he never managed a club that wants top four, he is always managing clubs that want to survive and want stability. Tony is mathematics. What the club wants, he gives.
"His record is absolutely amazing."
Tony Pulis has left Stoke City after seven years in charge at the Britannia Stadium, the club has confirmed.
A short statement on the club's website said: "Stoke City and Tony Pulis confirm that they have mutually agreed that Tony will leave the Club with immediate effect."
Tony Pulis is set to leave Stoke City after seven years in charge, according to The Daily Telegraph.
The Welshman guided Stoke to Europe and an FA Cup final during his second spell at the club, having been in charge previously from 2002 to 2005.
Stoke manager Tony Pulis has spoken of his pride after being chosen to carry the Olympic flame through the streets of the city on Thursday.