Who'll ride So You Think in next Sunday's Prix de l'Arc de Triomphe? Trainer Aidan O'Brien says he'll wait until later in the week before finalising riding plans for the Aussie superstar. He's been ridden by Ryan Moore and Seamie Heffernan since arriving in Europe, but Moore expected to be on Workforce in the Arc, so Heffernan would appear in pole position. But the situation remains unclear. O'Brien says: 'There's a week to go and we'll take it day by day.'LATEST ARC BETTINGSO YOU THINK 3.80 1.7

Who'll ride So You Think in next Sunday's Prix de l'Arc de Triomphe? Trainer Aidan O'Brien says he'll wait until later in the week before finalising riding plans for the Aussie superstar. He's been ridden by Ryan Moore and Seamie Heffernan since arriving in Europe, but Moore expected to be on Workforce in the Arc, so Heffernan would appear in pole position. But the situation remains unclear. O'Brien says: 'There's a week to go and we'll take it day by day.'

LATEST ARC BETTING

SO YOU THINK 3.80 1.70
SARAFINA 4.80 1.95
WORKFORCE 7.00 2.50
GALIKOVA 8.00 2.75
RELIABLE MAN 8.00 2.75
NATHANIEL 9.00 3.00
MEANDRE 13.00 4.00
SNOW FAIRY 17.00 5.00
HIRUNO DAMOUR 21.00 6.00
NAKAYAMA FESTA 21.00 6.00
ST NICHOLAS ABBEY 26.00 7.25
DANEDREAM 26.00 7.25
SEA MOON 26.00 7.25
(prices: TAB Sportsbet)