St Helens are top of the Super League table with three games played after they beat Hull FC 32-18, while Wakefield Trinity beat Warrington.
Warrington Wolves have stood down Anthony Gelling as they probe his "conduct away from the club".
St Helens failed to score as Warrington claimed a big Super League scalp, thanks to tries from Daryl Clark, Tom Lineham and Josh Charnley.
Warrington Wolves were reduced to 12 men early on against Wigan Warriors, who ultimately saw out a cagey win to start their season in style.
Leilani Latu will get his first taste of Super League with Challenge Cup holders Warrington Wolves.
Gareth Widdop will miss the start of the Super League season after suffering an injury which could keep him out until after round four.
Catalans Dragons and Warrington Wolves have been hit in the pocket due to ugly scenes in the south of France.
Tries from Adam Milner and Jordan Rankin helped Castleford Tigers to victory on the road in a hard-fought elimination final.
London Broncos' brave bid to retain their Super League status came up short, while Salford Red Devils claimed third place in the table.
Jay Pitts' late try means London Broncos remain in with a chance of beating the drop, while also leaving Hull KR in deep trouble.