The Baggies are aiming to deny Chelsea the victory which would see Antonio Conte's side win the Premier League on Friday.
"Now the most important thing is to reach our target".
If Chelsea win, they will have an unassailable 10-point lead over Tottenham Hotspur and will become English champions for a sixth time.
There are no other injury or availability concerns, and while Chelsea do have another match coming up right quick after this one on Monday, we are unlikely to be too concerned about that at the moment.
Last season, Chelsea mounted a dismal defence of the Premier League title and Jose Mourinho was sacked in December 2015, before the club eventually limped to a 10th-place finish under interim boss Guus Hiddink.
Conte is not the kind of manager to count his chickens and his manner suggests he will only be fully satisfied with a Premier League and FA Cup double.
Cesc Fabregas inspired Chelsea to a 3-0 win over Middlesbrough on Monday and then revealed that he ignored advice to leave the club.
"It's great to breathe this atmosphere at Stamford Bridge", he said.
Should Chelsea win the title, Antonio Conte will have won the league title in four successive seasons as a club coach after winning the Serie A title with Juventus in 2011-12, 2012-13 and 2013-14. If they could change that at Selhurst Park it would have huge implications for the relegation fight heading into the final day as Palace would then be dragged into it, leaving them just a point above Hull ahead of their last game at Manchester United. Over the years we've had good games against them and we've had a few good results at The Hawthorns, so we'll be turning up confident and trying to win the game.
'I know we're not there yet but we're very close and it will be very enjoyable after past year'.
"For this reason, for us, we must go game by game".
"We have three games to go, three points we have to take to be champions", Matic said.
"We are close and in football nothing is done until it's done".
"I have a contract for two years", Conte told reporters. We're still chasing a points tally that will keep us in eighth position so we have a lot to play for.
He added: "In this moment for me or for my players, the most important thing is to be focused on the moment".