I'm humming a little tune to myself here – think Jessie J and Pricetag – it's all about the money, money, money…and that's because I'm writing about the upcoming Prix de l'Arc de Triomphe!

For those of you who don't know, this particular race, held annually at Longchamps on the first Sunday of October, is a Group 1 flat horse race in France open to thoroughbreds aged three years or older.

It is run over a distance of 2,400 metres (about 1½ miles) and, while popularly referred to as the “Arc”, is one of Europe's most prestigious horse races is currently the world's third richest turf race, behind the Melbourne Cup and the Japan Cup.

This year's hot favourite to win it is the Aidan O'Brien trained Camelot. At 3/1 with Paddy Power Bookmakers, he does look the favourite but then he did for the St Ledger as well and look what happened there! That's probably why the bookies are being so generous.

This time however, in a move that suggests blood is definitely not thicker than water, O'Brien has given his own son, and regular Camelot jockey the heave-ho and instead Frankie Dettori will be on board on Sunday.

Though I should point out that connections have stated that Joseph O'Brien, who has partnered Camelot on every start to date, will be on St Nicholas Abbey as he is unable to ride Camelot at 8st 11lb!

With so many great horses being withdrawn from this year's Arc, the latest to go is Danedream who's trainer, Peter Schiergen, released a statement which read: “We learnt on Monday afternoon that Cologne racecourse, where Danedream is stabled at Peter Schiergen's yard and where she had only just completed her final preparation in view of another start in the Arc, was quarantined with immediate effect.”

So with so much going on in the days leading up to one of the biggest flat races of the year, the odds keep changing as well as the runners but for all of the latest and best check out the details below…

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