St Helens head coach Nathan Brown has made just one change to his squad for the visit of Warrington.
O’Brien is in the mix after returning from a loan spell with Saints, while Evans recently made his comeback from a broken foot.
St Helens 19-man squad: Wellens, Turner, Soliola, Meli, Hohaia, Lomax, McCarthy-Scarsbrook, Puletua, Wilkin, Manu, Laffranchi, Clough, Jones, Makinson, Greenwood, Walmsley, Swift, Walker, Howarth.
Warrington 19-man squad: C. Bridge, Briers, Carvell, Cooper, Evans, Grix, Harrison, Higham, Hill, McCarthy, J. Monaghan, M. Monaghan, Morley, O’Brien, Ratchford, C. Riley, Waterhouse, Westwood, Wood.
Prediction: Home win.
In the last 10 meetings between the sides there have been five wins each.
2013 meetings – St Helens 22, Warrington 48 (SLR16, 25/5/13 at Etihad Stadium, Manchester)
– Warrington 10, St Helens 22 (SLR6, 8/3/13)
Super League summary:
St Helens won 38 (includes wins in 2010 & 2012 play-offs)
Warrington won 6 (includes win in 2012 play-offs)
St Helens highest score: 72-2 (H, 2002) (also widest margin)
Warrington highest score: 56-22 (H, 2001) (also widest margin)