San Francisco 49ers coach Kyle Shanahan doesn't envisage too many issues associated with playing on the MCG's vast expanses in his side's NFL season opener.
The Niners take on division rivals the Los Angeles Rams at Melbourne's sporting cauldron on Friday - the league's first regular-season game in Australia.
"Hopefully they have chalk here and can put the white lines for us," Shanahan said ahead of the historic clash.
"As long as that white line is rectangle, we should be alright."
Several 49ers players got a taste of what to expect at the MCG last week when they attended the AFL semi-final between Geelong and Carlton, played in front of more than 96,000 fans.
"I just saw some videos because some guys went for the rugby ... sorry, the footy game," Shanahan said.
"It looked big and I think it will be different. The field's so much bigger so I'm curious ... how different it will be because a football field's smaller.
"That's more for (the fans) than us, but I'm excited to play in a stadium that can fit 100,000."
Niners running back Christian McCaffrey was unsure just how much of a problem the oval-shaped arena would pose for players accustomed to rectangular stadiums.
"That's a good question. I'll probably know better after the game," McCaffrey said.
"It's always weird when you go into a new stadium that's not a 'football' stadium.
"Where the game clocks are, hearing calls, hearing audibles, you know, regardless of noise - that's all stuff that you'll adjust to during the game.
"But some of those challenges will be more pertinent. I'm not sure about the wind."
Wind inside the MCG famously "swirls" around the cavernous venue and could throw up hurdles for NFL quarterbacks and receivers.
The 49ers are preparing for their MCG debut with a series of practice sessions across the road at AAMI Park, which has a similar grass surface.
"I don't know if we'll do a walk-through (at the MCG) but I think this is the same field surface that we're going to be playing on," McCaffrey said.
"So we've got a couple days and bonus practices where we can get used to the grass."
While San Francisco have a full week in Melbourne to prepare for their season opener, the Rams' preparation is in stark contrast.
Sean McVay's team leaves California for their 15-hour flight on Tuesday night (local time) to arrive in Australia on Thursday, about 24 hours before kick-off at 10.35am in Melbourne on Friday morning.
McVay said he is following the team's typical schedule for a domestic game, with the team generally travelling on Friday night for a Sunday game.
"Sleep through the night and then we'll get there and we have kind of a rhythm.
"What gives me confidence is I'm not going to really make it a big deal," McVay told reporters in Los Angeles.
"We've got a long way to go, but let's be ready to rock when that three-hour window comes. Our expectation is our guys will be ready to go and I'm not worried about it."
