Chris Vermeulen says he will undergo discussions with his team and doctors this week in a bid to agree on 'how best to move forward' having hurt his knee again at Brno.

The Australian has been hampered 'tirelessly' since damaging his right knee in an accident during the very first round of the season at Phillip Island, Vermeulen still requiring heavy bandaging on his leg six months on.

Targeting a breakthrough on the Kawasaki this weekend, Vermeulen was instead down and out at the first turn after getting involved in a three-bike pile-up, one that has triggered pain in his knee once again. Although he attempted to start race two, he lasted just two laps before pitting to retire.

"We've had a real struggle here in Brno this weekend. We made up a little bit of pace during practices but like everyone else here we had problems with edge grip. Having to start on fifth row continuously makes life difficult and I got caught up in a rider tangle on turn one and was whipped out of the race.

"I was optimistic about starting race two but I just could not continue after two laps due to the pain in my damaged right knee. I am obviously extremely disappointed and frustrated with my knee injury which is tirelessly holding me back and where we ended up this weekend.

"I will have to discuss with both my team and my doctor this week on how best to move forward."