From Royal runners, to formidable teams and top-notch stallions bidding to break their Royal Ascot hoodoo, here are five things to watch out for on the opening day of the eagerly-anticipated meeting. It promises to be a week to savour. Things Are Looking Rosy For Shapoor MistryBidding to continue a glorious summer for Oaks-winning owner-breeder Shapoor Mistry is Rosy Affair (Havana Grey), who lines up for the G1 King Charles III Stakes. The five-year-old mare, who won the Listed Cecil Frail Stakes over six furlongs at Haydock on her last start, has been exciting her trainer George Boughey, who said last week, “She drops back to five, and I've been wanting to do that for a while. She's shown loads of pace at home. The quickest we've ever had a horse go over five furlongs was her [last Tuesday], so it gives me confidence to run five furlongs with her.”If successful, Rosy Affair would become the second Group 1 winner for her sire Havana Grey after Vandeek, whose half-brother Gstaad (Starspangledbanner) returns to Royal Ascot for a rematch with Boughey's Bow Echo (Night Of Thunder) in the hotly anticipated G1 St James's Palace Stakes. Gstaad won the G2 Coventry Stakes on this day last year and could become the first Coventry winner since Dawn Approach (2012) to return to win the St James's Palace.Emma BerryCan Mehmas And Sioux Nation Break An Important Duck?Given the popularity of Mehmas and Sioux Nation at the breeze-up sales in particular, it might surprise that neither stallion has managed to sire a Royal Ascot winner to date. Mehmas is 0-78 heading into the royal meeting but that does not tell the whole story given Persian Force was a narrow second in the 2022 Coventry Stakes and Lusail only went down by a head in the St James's Palace Stakes that same year. The Tally-Ho Stud resident is well-stacked for the week with Goffs Breeze-Up Sale-topping Mrair heading a five-strong challenge for the stallion in the Coventry Stakes while Craven Breeze-Up graduate Wild Blossom has strong claims in the Queen Mary. As for Sioux Nation, a Royal Ascot-winning two-year-old himself, he has had almost 20 runners at the royal meeting without a winner. Similarly to Mehmas, he has a number of strong fancies bidding to break that unwanted duck this week, most notably Queen Mary fancy Alta Regina. Brian SheerinExpect Another Big Week For Night Of ThunderNight Of Thunder's rise through the stallion ranks continues at frightening pace and Tuesday's card sees Kildangan Stud's kingpin enjoy serious prominence. In the Queen Anne, More Thunder looks primed for a big effort with a profile that more than hints at a Group 1 win, while the smart Ten Bob Tony and Zeus Olympios are proper understudies. The supplemented three-year-old Behike adds spice to the King Charles III, while in the St James's Palace he is represented by the big horse of the day and possibly the entire meeting. Bow Echo is one of the very finest 2,000 Guineas winners for many a year and is perhaps the greatest testament so far to his sire's versatility as well as class. Then there is Ombudsman to look forward to on Wednesday…Tom FraryMore Wathnan Racing Domination?Wathnan Racing's representation at Royal Ascot grows by the year and Tuesday begins with a bang for the operation. Why their Queen Anne runner Damysus (Frankel) is such a big price given that he flirted with favouritism for the Lockinge is a mystery and he'll love this track, while the breeze-up sensations Royal Heritage (Blue Point) and Ruler's Pride (Mehmas) head to the Coventry with big upside. Throw in the in-form Night Raider (Dark Angel) in the King Charles III, the classy Haatem (Phoenix Of Spain) and Map Of Stars (Sea The Stars) in the Wolferton and hot favourite Valiancy (Cracksman) in the closing Copper Horse and you have a formidable team. It'll be extremely difficult to follow last year's exploits of ending the meeting as the leading owners, but they are well stacked to give it a good shot. Tom FraryMullins Has Good Chance Of Delivering A Royal WinnerRacing was abuzz about the prospects of Willie Mullins training his first winner for the King and Queen when Reaching High (Sea The Stars) lined up for the Ascot Stakes at this meeting 12 months ago. Well, things couldn't have gone any worse for the stayer when he endured a nightmare passage to finish a luckless ninth, beaten a little under four lengths under Ryan Moore. Reaching High will bid to gain compensation in the same race on Tuesday and there doubtless will be lots of punters more than happy to strap themselves in for the ride as he is likely to go off a pretty short favourite once again. Brian SheerinThe post Five Things To Look Out For On The Opening Day Of Royal Ascot appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.