Joel Monaghan crossed twice for Warrington but the Wolves fell to a 28-22 defeat at reigning Super League champions Leeds Rhinos on Sunday.
Australia international Monaghan, brother of Michael, scored in either half taking his 2013 try tally to 11 but it was in vain for the visitors, who missed the chance to move up to third.
Instead the Rhinos - who had Danny McGuire, Kallum Watkins, Paul McShane and Ryan Hall (2) on the scoresheet - moved level on points with last year's Grand Final victims.
Earlier, Wigan retained their place at the top of the table with two tries from Anthony Gelling helping the Warriors to a 44-24 victory over Wakefield Wildcats.
Gelling, who was sacked by Sydney Roosters in 2010, started for the first time since round three and scored either side of the break with Sam Tomkins notching another hat-trick for the dominant home side.
Wakefield, who had Justin Poore sent off after just 11 minutes for punching Liam Farrell, had a former Rooster of their own on the scoresheet in centre Vince Mellars, while Richie Mathers - who spent a year with the Gold Coast Titans in 2007 - and Paul Aiton also got in on the act.
St Helens now find themselves four points adrift of the summit after slipping up 22-14 at Hull KR, with Cory Paterson among the scorers.
Paterson, who joined the Robins from North Queensland Cowboys in the close season, went over just after the break to give his side what proved to be an unassailable 16-10 lead.
Elsewhere, Widnes Vikings scored more than 50 points for the first time since returning to Super League with Rhys Hanbury and Cameron Phelps both securing hat-tricks in the 58-24 demolition of Salford City Reds.
New South Wales-born Hanbury and Phelps, who spent three years with Canterbury-Bankstown Bulldogs, were joined on the scoresheet by Frank Winterstein - a former teammate of Phelps at the ANZ Stadium.
Meanwhile, Catalan Dragons fell to a 28-8 defeat at Hull FC - just the Black and Whites' fourth league victory of the campaign.
Jason Crookes and Tom Lineman both grabbed a double for the hosts which forced the Dragons to concede ground on the leading group.
On Saturday, Huddersfield temporarily went top of the table after their seven-try blitz against Castleford Tigers - Jermaine McGillvary grabbing two tries for the Giants who triumphed 40-24.
Tigers boss Ian Millward, who coached North Queensland before moving to Castleford in 2012, watched on as Oliver Holmes, Adam Milner, Daryl Clarke and Jonathan Walker touched down for his side - but they remain bottom.
Elsewhere, Jarrod Sammut was on a one-man mission to keep Bradford Bulls' charge at the top of the table on course with four second-half tries against London Broncos.
The 26-year-old, who spent two years with Penrith Panthers, helped the Bulls recover from a 20-12 half-time deficit at Adams Park, due in the most part to Kieran Dixon's first-half hat-trick.
But Maltese-born half-back Sammut eclipsed his efforts, claiming a personal haul of 30 points which also included seven goals, to ease his side to a 46-20 victory.