Dwayne Dunn will be chasing a third-straight win in the Sir John Monash Stakes when he rides Fast `N' Rocking at Caulfield.

Group One placegetter Fast `N' Rocking is one of two horses trainers David Hayes and Tom Dabernig have heading to Saturday's Group Three weight-for-age sprint.

Dunn's apprentice son Dylan will ride the stable's other contender Kayjay's Joy.

The father and son are holding on to slender leads in the respective Melbourne premierships with Craig Williams whittling Dwayne Dunn's lead to one and Michael Dee three behind Dylan Dunn in the apprentices' battle.

Dwayne Dunn combined with Hayes and Dabernig to win last year's Monash Stakes (1100m) on Miss Promiscuity a year after his success on the Robbie Laing-trained Lord Of The Sky.

Fast `N' Rocking is a Listed winner at Caulfield and has twice been placed at Group One level at the track.

He has a win and two placings from five starts over the Caulfield 1100m, while Dunn has ridden him in nine of his 39 starts.

Fast `N' Rocking campaigned in Melbourne, Sydney and Adelaide during autumn including a fourth in the Group One Goodwood (1200m) at Morphettville.

"Fast `N' Rocking has got a very good fresh Caulfield record and he seems to be working really well," Dabernig said.

"He ran well up in Sydney and then we ran him in the Goodwood in Adelaide and he's basically stayed in work and had a bit of a freshen-up at the farm at Euroa."

Fast `N' Rocking is the class runner of the stable's two chances but Kayjay's Joy has shown a liking for Caulfield with three wins from five starts at the track.

Her most recent start was a fifth in the Proud Miss Stakes in Adelaide in May from a wide gate.

"She's hasn't been able to get black type at this stage so that's what we're chasing with her," Dabernig said.

"I think she's going as well as she ever has and I just love her record at Caulfield. This will be her toughest test to date. She's been working through her classes and Adelaide was no real guide because she had a torrid run.

"Without seeing the field or barriers, I think if she ran to her best she's definitely going to be competitive."