Marlborough on course for National Marlborough remains on course for the Martell Grand National on Saturday as he bids to form part of a three-pronged raid on the Aintree spectacular for owner Sir Robert Ogden.Nicky Henderson`s 10-year-old is also entered in the Martell Cup on Thursday but the Stg£500,000 contest at the weekend is his priority and the same owner has Tote Cheltenham Gold Cup third See More Business in line for the Martell Cup.Barry Simpson, racing manager to Sir Robert, said today: 'Nicky worked the horse yesterday morning and everything is on course.'The intention is to have three runners with Mick Fitzgerald on Marlborough, Ruby Walsh on Kingsmark and Paul Carberry on Ad Hoc.'He (Marlborough) is entered in Martell Cup as well but there is nothing sinister in that.'He is there because if it happened to lash down with all week and the ground became heavy we wouldn`t subject Marlborough to carrying 11st 12lb over four mile, four furlongs.'If that was the case he would run in the early part of the week but for that to happen there has to be a deluge of rain.'We fully intend to run See More Business in that race. He`s come out of the race extremely well. I saw him the other morning and he`s in good form.'
