Round 20 sees Wakefield Trinity welcome Warrington Wolves to the Beaumont Legal Stadium on Saturday July 1, kick-off 6.30pm.
Trinity will be looking at putting the recent defeats behind them as they look at securing a spot in the top eight, which can be achieved if they pick up the two points on Saturday.
Warrington go into the fixture on the back of a vital win against Catalans Dragons last weekend. After a tough season, the Wolves are fighting to get into the top eight; they are currently sitting three points behind the eighth spot.
Both sides have already met this season at the Halliwell Jones Stadium back in April, it was a hard fought contest but Warrington edged it after winning by 22-20.
Only two changes have been made by Chris Chester, he has brought in Dean Hadley after the second-rower was unable to face his parent club Hull FC last Friday night. Jordan Crowther has also been called up into the 19-man squad.
The players to drop out are James Batchelor who picked up a knock against Hull FC and Max Jowitt.
Warrington have been boosted with the return of Ratchford who is available following a suspension. Tony Smith has also named new signing Hiku, unfortunately they will be without Westerman who has a hip injury.
Trinity 19-man squad: Chris Annakin, Tinirau Arona, Joe Arundel, Matty Ashurst, Mason Caton-Brown, Jordan Crowther, Anthony England, Liam Finn, Scott Grix, Dean Hadley, Keegan Hirst, Craig Huby, Ben Jones-Bishop, Reece Lyne, Mikey Sio, Bill Tupou, Adam Walker, Sam Williams, Kyle Wood
Wolves 19-man squad: Ryan Atkins, Daryl Clark, Mike Cooper, Will Dagger, Brad Dwyer, Kurt Gidley, Peta Hiku, Chris Hill, Jack Hughes, Jack Johnson, Benjamin Jullien, George King, Declan Patton, Kevin Penny, Joe Philbin, Stefan Ratchford, Andre Savelio, Ashton Sims, Sam Wilde