We’ve been treated to two days of excellent racing at Cheltenham this week and there’s more where that came from, with another six-race card to look forward to on Sunday.The main event is undoubtedly the £100,000 Greatwood Handicap Hurdle and hopefully there will be one or two future graded horses among the field. There’s also a valuable handicap chase over an extended 3m3f in which a very competitive line-up has been assembled.Our expert has been tasked with picking out his three best bets for Cheltenham on Sunday and there is a particularly promising runner in the feature race who catches the eye. The horse in question is a Grade 1-winning novice and there could be more to come this year.November meeting exclusive offer: Get £40 in free bets when you place a £10 on the racing – CLAIM HERE*Sunday Cheltenham tips1.25 – Pourquoi Pas Papa @ 8/12.35 – Havaila @ 3/1 3.10 – Idaho Sun @ 10/31.25 Cheltenham – Pourquoi Pas Papa @ 8/1Paul Nicholls’ Pourquoi Pas Papa was a fair performer last term and he managed to win a Wincanton maiden hurdle by seven lengths in January, with the gelding firmly in control throughout. That form has been boosted by the runner-up, Aguellid, who went on to win his next start.Second in the Victor Ludorum at Haydock after that, there was plenty to like about Nicholls’ gelding’s solid fourth in the McCoy Contractors Juvenile Handicap Hurdle at the Cheltenham Festival. The son of Manatee also placed in a competitive race at the Aintree Festival last term.It would be no surprise if the step up to 2m4f facilitates some improvement and he was a respectable second behind Sinnatra in a novice handicap at Ffos Las on his seasonal debut. He will step forward from that run and looks more than capable of winning over fences.2.35 Cheltenham – Havaila @ 3/1Jamie & Josh Moore’s Havaila began last season on a mark of 114 and ended it 25lb higher. Something clicked for him in the spring as he progressed through the ranks. The seven-year-old was a very comfortable winner over just shy of three miles at Newbury and having put seven lengths between himself and the runner-up on that occasion in March, he took the step up to a marathon trip in his stride at Plumpton the following month. The extended 3m4f trip was certainly no issue and he stayed on well to land that Class 2 contest by a comfortable five lengths.There was still more to come at Sandown next time and he produced a career-best to win the bet365 Gold Cup, albeit by a narrow margin. It is likely that the handicapper will catch up with him soon but he can win another race before that happens and this looks a very good opportunity.3.10 Cheltenham – Idaho Sun @ 10/3Harry Fry is one of the most patient trainers in the business and his runner Idaho Sun makes his handicap debut off a mark of 142 in the feature race of the day. A setback made him miss the Cheltenham Festival last season but it is very likely that his best is yet to come.Idaho Sun was a narrow winner of a Newton Abbot bumper on debut and followed up in good style in a decent race at Windsor. Making the perfect start to life over hurdles, he won a Fontwell maiden as well as a Bangor novice, both by comfortable margins and with minimal fuss.A step up in grade was inevitable and he managed to get the better of Mydaddypaddy in the Grade 1 Formby Novices’ Hurdle at Aintree on Boxing Day. The six-year-old would have been a live Supreme candidate but he is still probably significantly ahead of the handicapper.November meeting exclusive offer: Get £40 in free bets when you place a £10 on the racing – CLAIM HERE*All odds correct at time of writing.Remember to gamble responsiblyA responsible gambler is someone who:Establishes time and monetary limits before playingOnly gambles with money they can afford to loseNever chase their lossesDoesn’t gamble if they’re upset, angry or depressedGamcare – www.gamcare.org.ukFind our detailed guide on responsible gambling practices here.For help with a gambling problem, call the National Gambling Helpline on 0808 8020 133 or go to www.gamstop.co.uk to be excluded from all UK-regulated gambling websites.*18+ New Customers. Opt in, deposit and bet £10+ on any horse racing markets within 7 days of sign up. Get 4 x £10 Free Bets for set horse racing markets. Bonuses expire in 7 days. Scroll down for T&Cs. GambleAware.org Please gamble responsibly.