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The Ashes: Steven Finn plays at Trent Bridge, Australia pick Ashton Agar

Ashton Agar: Shock debut for Australia

Steven Finn will be England's third fast bowler in the first Ashes Test with Australia at Trent Bridge, with the tourists springing a major surprise by picking little-known spinner Ashton Agar.

The Middlesex fast bowler got the nod ahead of Yorkshire's Tim Bresnan but he will have to wait for his chance to shine - England captain Alastair Cook won the toss and chose to bat.

Australia meanwhile sprung a major selection surprise by picking left-arm spinner Agar.

Agar, just 19, has played just 10 first-class matches - the first in Janaury this year - but he will make his Test debut at Trent Bridge.

He played in Australia's last warm-up match against Worcestershire, returning modest figures of 2-79 off 23 overs and 1-86 off 27 in the second innings.

Agar, 6'4" has played for the Australia U19 and U20 sides, and he plays his domestic cricket for Western Australia.

He was a surprise inclusion in the squad, but few expected him to be named in the starting XI.

He was handed his Baggy Green cap by former Australia Test star Glenn McGrath.

Steve Smith provides a second spin option and he will bat at No 6, but there is no place for David Warner, who has been suspended since punching England opener Joe Root in a Birmingham nightclub.

England: Cook, Root, Trott, Pietersen, Bell, Bairstow, Prior, Broad, Swann, Finn, Anderson

Australia: Watson, Rogers, Cowan, Clarke, Hughes, Smith, Haddin, Siddle, Pattinson, Starc, Agar