Australian all-rounder Adam Voges believes that England's Ashes chances hinge on how much swing their bowlers can generate.
The Nottinghamshire player has first-hand experience of the amount of sideways movement some of England's seamers can produce.
The 29-year-old, who has returned home for the Australia A series, was especially impressed with the bowling of English pace trio Stuart Broad, James Anderson and Graham Onions in the two Test series with the West Indies
However, Voges thinks that the England attack will have a much tougher task over the course of an Ashes series.
"In those conditions, most of the guys get a bit of swing and that's going to be a real key to the series," he said.
"I think it's going to be huge to be honest. The guys that they used against the West Indies did really well. If English pace bowlers can swing the ball a lot it's going to make for an interesting series.
"They bowled well against the West Indies, but against us I suppose it's a different proposition."
Nottinghamshire team-mate Ryan Sidebottom will be eyeing a return to Test cricket during the summer after being named in the extended England squad on Monday.
Voges had high praise for the left-arm bowler and believes the Ashes would benefit from his presence.
"He's a bit different, but he's a good guy. The way he conducts himself on the field is always interesting. He's a big, vibrant character which is great for the game," Voges added.
"He had a few niggles he was trying to get on top of."