Henderson wary of Gold-en duo

Nicky Henderson has pinpointed Silviniaco Conti and Last Instalment as dangers to Bobs Worth when his star bids to retain his Betfred Cheltenham Gold Cup crown next month.

The nine-year-old, who is unbeaten in five visits to Prestbury Park, left behind a very disappointing reappearance in the Betfair Chase by collecting the Lexus Chase over Christmas.

The nine-year-old is set to be joined by a high-class quintet of stablemates at Newbury on Sunday as he builds towards the defence of his crown.