Fremantle coach Ross Lyon says he is confident both Chris Mayne and Aaron Sandilands will be fit for round one despite suffering injuries in tonight's NAB Cup fixture at Patersons Stadium.Mayne caused a significant scare in the Dockers camp when his ankle became caught under Geelong tackler Joel Hamling in the second half of their 0.7.6 (48) to 0.4.6 (30) win.The versatile forward was in visible pain and remained lying on the boundary for several minutes before walking to the interchange bench with the help of a trainer.Lyon said early signs were that it was not a serious injury."We are pretty confident it is a ligament in the ankle and he will be running in seven days," he said.Ruckman Aaron Sandilands did not appear in the club's second fixture - a 40-16 loss to West Coast - because of glute tightness.Lyon said the club was hopeful he would be fit for their NAB Cup clash against Carlton at Etihad Stadium in two weeks.While Fremantle burst out of the blocks against a tiring Geelong, their free-flowing game style was stymied by the Eagles, who were relentless at stoppages to deny the Dockers first use of the ball.Lyon said while he had recognised some deficiencies in his side's game style, they would be easily fixed by the time the club meets the Eagles in round one of the regular season."We walk away positive, we have had a really strong summer," he said.The coach was quick to praise young midfielder Stephen Hill, who found plenty of the ball in space but also showed an increased appetite for the contested ball.The 22-year-old used his pace to create a number of goals for the Dockers, at one point bursting past three Eagles players on a wing to set up forward Hayden Ballantyne."I thought Stephen Hill was probably our standout when he got the ball," Lyon said."He competed really, really well."