Lewis Brown scores a try for the Panthers, killing off any hopes his former club had of making the top eight.

The door slammed shut on the Warriors' season on Saturday night with a 24-10 defeat to the Panthers in Penrith.

It wasn't the worst performance from the Warriors in their losing run, which has now stretched to five games, but that's not exactly something to be proud about.

The Panthers had lost five games on the bounce before this and all they had left to play for was avoiding the wooden spoon, yet they were the side that played with more composure and passion and while the Warriors constantly talk about improving their defence, there still aren't any signs of that actually happening.

Over the last five games, the Warriors have scored 34 points and conceded 136.

This defeat doesn't mean it's mathematically impossible for them to make the finals, but even their greatest supporter must have given up any hope by now.

On attack the Warriors were just as bereft of ideas as they were in the 36-0 thrashing at the hands of the Dragons the previous week.

Chad Townsend's kicking was poor, rarely giving his team-mates any opportunities to score when looking to put the ball into space on the last tackle.

Even the usually reliable Simon Mannering made simple handling errors in this game.

Apisai Koroisau almost gave the Panthers the dream start with a try, but as he attempted to ground the ball over the line, it bounced off the knee of Tuimoala Lolohea.

However, the Panthers weren't denied for long. In the ninth minute they were given a penalty close to the Warriors' line and they took advantage of it with Lewis Brown brushing off the attempted tackles from Dominique Peyroux and Lolohea to score.

Five minutes later Panthers prop Reagan Campbell-Gillard exposed yet more slack defending by the Warriors in scoring his maiden NRL try up the middle of the visitors' defence.

Campbell-Gillard featured for the wrong reasons shortly after by putting his shoulder into the face of Sam Rapira, getting himself on report and ruling the Warriors out for the remainder of the game.

Jamie Soward goaled a penalty in the 28th minute to make the score 14-0.

On the half hour mark, the Warriors scored their first try in 152 minutes. Sam Tomkins took an offload from Ryan Hoffman, quickly flicked the ball inside to Charlie Gubb, got the ball back and ran in under the posts for his first try of the year.

In the 34th minute, Konrad Hurrell, who'd only just come onto the field, gathered a short kick from Jonathan Wright for the Warriors' second try.

But hopes that the visitors were coming back were snuffed out a minute before the break. Fullback Will Smith made a 60m run, the Warriors weren't able to organise their defence and Tyrone Peachey scored down the left edge.

It was the type of soft try that's typified the Warriors over the back-end of the season and instead of heading into the sheds with their backs up, there were looks of resignation among many players in grey jerseys.

Panthers winger David Simmons scored the Panthers' fourth try in the 48th minute and afterwards there was more constructive play from the Warriors, with Lolohea able to find a few gaps. In fact, at that point he arguably had his best period of play since replacing Shaun Johnson in the halves. But that said, the Warriors weren't able to add to their first half points.

Meanwhile, in the Warriors' other games on Saturday, the under 20s lost 36-28 to the Panthers, while in the reserve grade NSW Cup, the Warriors beat the Tigers 20-16.

Panthers 24 (Lewis Brown, Reagan Campbell-Gillard, Tyrone Peachy, David Simmons tries; Jamie Soward 4 goals) Warriors 10 (Sam Tomkins, Konrad Hurrell; Tuimoala Lolohea goal) HT: 20-10.