Ashes opportunities will be up for grabs when the first Test against West Indies begins at Edgbaston on Thursday, says England captain Joe Root.
As England prepare to play their first day-night Test against West Indies, BBC Sport looks at whether this is the future of the five-day format.
The day-night Test between England and West Indies on Thursday is a "step into the unknown," says bowler Stuart Broad.
West Indies will have to "play exceptionally well to even compete against England," says legendary fast bowler Sir Curtly Ambrose.
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English cricket takes a step into the dark on Thursday with the first day-night Test played in the country as Joe Root's side face West Indies.
Analysis and opinion from the BBC's cricket correspondent.
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