Palace secured a morale-boosting victory over drop rivals Middlesbrough last weekend and head to the Hawthorns with renewed survival hope, despite Leicester's win against Liverpool placing them back in the relegation zone.
It was Palace's second win in 12 top flight matches, but there were encouraging signs that Sam Allardyce - in place at the club since December - is finally having the desired impact in south London.
January signings Luka Milivojevic and Mamadou Sakho brought some much-needed steel to Palace, while another Allardyce addition Patrick van Aanholt hit the decisive goal.
Meanwhile, West Brom - led by former Palace boss Tony Pulis - have been impressive this term and beat Bournemouth on Saturday to reach the 40-point mark with 12 games to spare.
Scroll down for Standard Sport's breakdown of the game...
West Brom host Crystal Palace at the Hawthorns with kick-off scheduled for 3pm on Saturday, March 4.
The match will not be televised live in the UK. Alternatively, you can follow all the build-up and action from 2pm with Standard Sport’s London Football live blog. Enter your email address below to be alerted when coverage begins.
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Scott Dann is fit to feature for Crystal Palace, though Sam Allardyce did not confirm if the captain will start in his Friday press conference.
Dann wasn't expected to make Saturday's home match against Middlesbrough but was deemed fit enough for a place among the substitutes and made a late appearance as Palace shut out Boro.
Steve Mandanda and Bakary Sako are also available, though their level of involvement remains to be seen after lenthy spells of the sideline.
Loic Remy, Mathieu Flamini, Pape Souare and Connor Wickham remain sidelined.
Baggies boss Pulis will check on the fitness of Matt Phillips after the winger missed the home win against Bournemouth with a hamstring injury.
Defender Craig Dawson has already been checked over and is fine to play after a bang to the head saw him withdrawn early in the second half against the Cherries.
West Brom starting XI: Foster, Dawson, McAuley, Evans, Nyom, Livermore, Brunt, Fletcher, Morrison, Chadli, Rondon
Crystal Palace starting XI: Hennessey, Ward, Dann, Sakho, Van Aanholt, Cabaye, Milivojevic, Zaha, Puncheon, Townsend, Benteke
BETTING ODDS (via 888 Sport)
West Brom to win: 7/6
Crystal Palace to win: 14/5
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Odds correct as of March 3 at 1:30pm