"The Rebels can make something out of nothing. We're going to have to be on our game and try to go to the set pieces more often."
The Rebels were impressive in last week's 35-14 win over the Cheetahs.
The Melbourne-based outfit have won their past two clashes in Perth, and hold a four-match winning streak against the Force.
All six games between the two sides have been decided by seven points or less, and Hayward, 27, is expecting another tight tussle.
"It's a big occasion as well - Hodgo's 100th game," Hayward said in reference to skipper Matt Hodgson.
"There's a lot of motivation there for this week. We've lost our first two games so it's hugely important we get a 'W' on the board this week."
Wallabies flanker Hugh McMeniman, who injured his neck in last week's 27-14 loss to the Brumbies, is expected to miss the clash.
Hayward was overlooked for selection in the season-opening loss to the Waratahs, but was impressive when he came off the bench against the Brumbies last week.
The fullback believes his three-month-old beard is already bringing him good luck after he crossed for his maiden Super try in his 35th appearance last Saturday.
-AAP