Willie Peters insists Hull KR had plenty of positives to take from their defeat to Warrington Wolves - but admitted that some key areas let them down on the night.

The Robins came unstuck at the Halliwell Jones Stadium, losing 20-8 to Sam Burgess' side. A slow start and some uncharacteristic frailties defensively proved to be their undoing as the Wire went top of Super League.

Peters was particularly disappointed with the poor discipline of his side in key areas, and the right-edge defence which leaked all three tries Warrington scored on the night.

“We didn’t start well,” he said. “I thought we were still in the fight, there was no doubt about that, and we put ourselves in a position to win but it wasn’t the start we were looking for – too many penalties, too many leg-ups and our defence was way off. There was a disconnect on the right edge and that’s something we need to fix in the week.

“We have been really good with our discipline this year in that area of the field, but you don’t want to give a team like Warrington leg-ups and easy metres upfield and we gave them that, but they played well, they kicked strong and defended hard, I thought they played well."

On the defensive issues that hurt them on the right flank, Peters said: "There's some experienced players there. We need to fix it and address it during the week. There's a lot of experience there and I'm confident they'll fix it, but it wasn't good tonight, there was too much disconnect, they were doing different things. It's something we'll look at.

"It's something I spoke to the players about, they were just doing different things. Whether you stay connected or jump out, you've got to do it together. We'll certainly address it and work on it during the week. It will be an easy fix in the sense that there's some experience there, it's not like they're guys who haven't played together or not played in big games before, they just didn't get it right tonight."

All that said, Peters was still pleased with many aspects of the outing, which they'll look to take into next week's Challenge Cup semi-final with Wigan Warriors.

“I’m taking a lot of positives. That first half, that could have been down 24, 30 at half-time, so I thought we did OK to stay in it, and then we won the second half. It's not like Warrington put the cue on the rack, we were there.

"There were some key incidents in that second half if we had got right, play the ball error, penalty with the obstruction, they're key moments in that second half. I thought we were starting to come over the top of them, and if we get one more try, the pressure is starting to get on them. But we shot ourselves in the foot with some unforced errors."