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Scotland's Head Coach Vern Cotter (C) shouts instructions to his during a training session at the team's base at Surrey Sports Park in Guildford, south west of London, on October 14, 2015. Scotland play Australia in a quarter-final match of the Rugby World Cup at Twickenham on October 18, 2015, but Scotland's Ross Ford and Jonny Gray are out of the World Cup after being suspended for three weeks each for tip tackles. AFP PHOTO / ADRIAN DENNIS RESTRICTED TO EDITORIAL USE (Photo credit should read ADRIAN DENNIS/AFP via Getty Images)

Scotland's Head Coach Vern Cotter (C) shouts instructions to his during a training session at the team's base at Surrey Sports Park in Guildford, south west of London, on October 14, 2015. Scotland play Australia in a quarter-final match of the Rugby World Cup at Twickenham on October 18, 2015, but Scotland's Ross Ford and Jonny Gray are out of the World Cup after being suspended for three weeks each for tip tackles.   AFP PHOTO / ADRIAN DENNIS

RESTRICTED TO EDITORIAL USE        (Photo credit should read ADRIAN DENNIS/AFP via Getty Images)