Emerging Adelaide onballer Rory Sloane implored his teammates to reject the AFL's cashed-up new clubs on the eve of their pre-season cup opener.

The Crows feature in two of three games in Adelaide on Friday night, with Melbourne and Port Adelaide also opening their pre-season campaigns.

Three matches of 20-minute halves will be played under experimental rules, including a free kick against the team last touching the ball before going out of bounds.

The Crows first host Melbourne, who then play Port, who then face Adelaide.

"It has never been done before, so it's going to be pretty exciting," Sloane told reporters on Thursday.

The 20-year-old is among a batch of young Crows aiming to step from the shadows of retired Adelaide greats including Simon Goodwin, Andrew McLeod and Tyson Edwards.

The Crows now have more players aged 20 to 24 in the AFL, with many certain to attract attention from Greater Western Sydney, which enters the league next year.

Forward Taylor Walker, a 20-year-old from Broken Hill, has already been named a target by GWS coach Kevin Sheedy.

But Sloane called on his teammates to put potential success before money.

"I think most of us will stay together," Sloane said.

"It makes sense to some players why they might want to leave, but other players might want something like a bit more team success or a premiership.

"There are a lot of factors that come into it, but we have a pretty tight group here and everyone enjoys each other's company, so I think we'll stay pretty tight and pretty close.

"I know Taylor's solely focused on having a good year and he's on the same page as us.

"He wants to go places with our playing group, we have got a young and exciting playing group and Taylor's a big part of that."

Sloane tipped the pre-season openers to be substantially quicker due to the rule changes, a sentiment echoed by Port's tall utility Jackson Trengove.

"It's going to be a lot quicker, I think it's going to be very exciting and the fans are going to love it, there's no out of bounds," Trengove said on Thursday.

"There's a few different rules tweaking in ... I think it's going to be exciting for the midfielders and the forwards to be getting a bit more speed into the game."

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