A wonderful night for St Helens saw them thrash fellow Super League front-runners Warrington Wolves as Wigan lost at Wakefield.
Warrington Wolves and Castleford Tigers each enjoyed spectacular wins on Friday, despite contrasting starts to their Super League matches.
Hull FC were subjected to a heavy home defeat by Warrington Wolves in Super League on Friday.
Having returned to rugby league a year ago, Josh Charnley is back in the England set-up.
Warrington Wolves appeared to be out of sight at Belle Vue, but only just held on to beat spirited Wakefield.
There were fine wins for Warrington Wolves and London Broncos in Super League, while Wakefield Trinity crushed Hull FC.
Castleford Tigers were beaten for the first time this season by Warrington Wolves but remain top of Super League.
Sam Tomkins kicked a late penalty for Catalans Dragons as Warrington Wolves' unbeaten start to 2019 came to an end on Saturday.
Alex Walmsley ran in two tries as St Helens scored 17 unanswered points in the second half to defeat Leeds Rhinos on Friday.
After playing his whole career in rugby union, Luther Burrell will line up for rugby league side Warrington Wolves later this year.