Fremantle defender Antoni Grover is at a loss to explain early-season skill errors, but pledges improvement in time.
"To put an exact reason on it is not an easy thing to do, but it's not acceptable and it's disappointing for our fans," Grover said from Fremantle Oval on Tuesday.
"We just want to keep demanding excellence of each other, whether we're on the training track, in the gym or on the field.
"And each time we go out to play we want to keep raising the bar and lifting our expectations of each other."