We've lost our mojo, says North Queensland Cowboys star Johnathan Thurston Special guest Ben Ikin previews round seven's Cowboys v Raiders clash. Johnathan Thurston is trying to turn the Cowboys' form around. JOHNATHAN Thurston says the Cowboys have lost their ``mojo" and admits he needs to transfer his dominant representative form to club level to kickstart North Queensland's teetering premiership campaign. The Cowboys are under mounting pressure to prove their title credentials after a 2-4 win-loss record has left them floundering in 11th spot entering tonight's clash against an unpredictable Canberra side in Townsville. The Cowboys were rated among the title contenders in pre-season, but Thurston believes his own form has impacted on a team struggling to live up to the premiership hype. The Test playmaker combined well with Cooper Cronk to spearhead Australia's 32-12 defeat of the Kiwis last week and says he must lift to spark the Cowboys - starting tonight against the Green Machine. "There's no doubt I can be better in some areas," Thurston said. The season has been a bit up-and-down for me personally, we are a quarter through the year now so I really have to start knuckling down, that's for sure. I need to get my options right for the team. My fifth-tackle options were poor against the Broncos (in their 12-10 loss a fortnight ago) and that's where the team looks for me to get things right. The Cowboys appeared to turn the corner with a 30-0 drubbing in Penrith in round five. But a heart-breaking 12-10 loss to the Broncos, who scored eight minutes from time to clinch the Queensland derby, was a further jolt to the side's confidence. A stomach bug has swept the Cowboys in the past week, although centre Kane Linnett and lock Dallas Johnson are expected to play. The Cowboys are bracing for the possible inclusion of Raiders backline star Blake Ferguson, who fractured his cheekbone against Newcastle a fortnight ago. It is understood Ferguson is travelling with the team, but the Raiders claim he is visiting relatives in north Queensland. Thurston, however, said the Cowboys needed to worry about their own backyard. "We haven't had our mojo really," he said. We've been good in patches for games and we've been really poor in other games. We aren't taking our opportunities. On a weekly basis, it's that hard to score points and when you get opportunities, you need to take them. We haven't quite been there at this stage of the season. Our last game against the Broncos was a step in the right direction and we need to continue that in the next few weeks. Winger Antonio Winterstein will be assessed on a groin injury, with Kalifa Faifai Loa on standby.