Charlie Gubb is set to make his Widnes debut on Thursday, while London have named an unchanged team.
Widnes Vikings interim coach Francis Cummins has made six changes to his side that lost to Castleford Tigers two weeks ago.
Gubb, Olly Ashall-Bott, Gil Dudson, Aaron Heremaia, Chris Houston and Charly Runciman come in for Rhys Hanbury, Ryan Ince, Owen Farnworth, Ted Chapelhow, Sam Wilde, Wellington Albert.
Danny Ward has named an unchanged London Broncos team to the one that thrashed Barrow Raiders 72-6 last time out.
Wales international Michael Channing and Matt Davis could feature for the Championship outfit after missing out on the 17-man matchday squad two weeks ago.
Vikings 19-man squad: Ah Van, Ashall-Bott, J Chapelhow, Craven, Dean, Dudson, Finn, Gubb, Hansen, Hauraki, Heremaia, Houston, Inu, Leuluai, Mellor, Olbison, Runciman, D Walker, Whitley.
Broncos 19-man squad: Battye, Channing, Davis, Evans, Hellewell, Ioane, Pelissier, Pitts, Spencer, Williams, Butler, Cunningham, Dixon, Harrison, Hindmarsh, Kear, Pewhairangi, Sammut, Walker.
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