The Warriors have lost their second consecutive trial of 2013, going down 32-18 to Penrith in an entertaining match at Waikato Stadium.
The Panthers completely dominated the first half, scoring four tries to one to hold a 22-4 halftime lead. Matt Elliott's team were better in the second spell but couldn't make up the deficit.
Lewis Brown enjoyed a happy homecoming, scoring two tries in the first half hour.
On a sweltering day in Hamilton the Warriors opened the scoring with a peach of a try in the eighth minute. After some swift dummy half runs, Thomas Leuluai created space for Shaun Johnson. The quicksilver halfback chipped and regathered before lobbing a kick for Manu Vatuvei, who did well to control the touchdown close to the sideline.
Unfortunately it was a something of a false dawn as Penrith dominated the rest of the half and their reply was almost immediate. They marched the length of the field on the back of three successive penalties and Lewis Brown brushed off his marker and sent Josh Mansour over in the corner in the 12th minute.