A row is brewing in British racing over the new Jockey Club rules that restrict the use of mobile phones in the jockeys' room on race days. In this part of the world, jockeys expect to be 'off the air' on race days and don't give it a second thought. But the UK riders aren't giving up their 'entitlement' without a fight, and they're now threatening strike action at Sunday's race meeting at Sandown. Solicitor Martin Cruddace, representing the riders, is due to meet Jockey Club officials today to press for more concessions. Prominent jockey Paul Eddery summed up the feeling in the room: 'If our hand is forced then I will support strike action. The restrictions are absolute nonsense. I book my own rides and I just can't do that without the use of my mobile phone.' Australia's horse of the moment, Lonhro, is looking unstoppable in the early part of his spring campaign. The new-generation 'black flash' lived up to his reputation with another devastating display in the Group Two Chelmsford Stakes (1,600m) at Randwick on Saturday. The five-year-old son of another great, Octagonal, recorded his 20th win from 27 starts and did it with plenty in hand. He's being set for Australia's only leg of the World Series, the Cox Plate, at Moonee Valley in Melbourne late next month. 'He's a natural horse with a supernatural gift,' was the memorable line from jockey Darren Beadman straight after the race. Peter Snowden, the foreman for trainer John Hawkes, added: 'We're lucky he can win without being put under too much pressure and thankful Darren can get him to win within himself. 'But they are never soft wins. He's run close to Filante's track record [1:35.06, last 600m 34.54], so it has to take something out of him. It looks easy, but it's not. His turn of foot is exceptional and the others can't match it.' France's premier mile race, the Prix Moulin, was decided at Longchamp on Sunday and despite the presence of all-conquering Irishman Dermot Weld with Refuse To Bend, it was the local genius Andre Fabre who held all the aces with Nebraska Tornado. The win was yet another Group One triumph for owner-breeder Khalid Abdullah, who had previously won the race with Rousillon and All At Sea. It also proved to be a compensation deal for Abdullah, whose champion three-year-old sprinter Oasis Dream was beaten in the Group One Sprint Cup at Haydock in England the previous afternoon, failing to adapt to the softer track conditions and succumbing to the strong finish of Pivotal gelding Somnus. The interesting part of the French race was that Moulin runner-up Lohengrin is trained in Japan, and made a grand attempt to lead throughout under Hiroki Goto, only going down by a half length to Nebraska Tornado. The two biggest racing organisations in the world - Dubai-based Godolphin and Aidan O'Brien's Ballydoyle yard in County Tipperary, Ireland - each won a leg of the World Racing Series over the weekend. O'Brien's High Chaparral won a thrilling but no-holds-barred Irish Champion Stakes on Saturday, narrowly accounting for Japan Cup hero Falbrav and top filly Islington, with champion three-year-old Alamshar a close-up but unlucky fourth. On Sunday, at Baden-Baden in Germany, Godolphin's Mamool (Frankie Dettori) gained a tight decision in the Group One Grosser Bugatti Preis (2,400m) after a stretch-long battle with Black Sam Bellamy, trained by (you guessed it) O'Brien. Black Sam Bellamy, a son of Storm Cat, has been purchased by Dr Andreas Jacobs, who will stand the high-priced yearling at his stud, Gestut Fahrhof, in Germany next year. Mamool may go for the Arc de Triomphe, but also holds a Melbourne Cup entry. Godolphin principal Sheikh Mohammed is in Kentucky for the annual September sales at Keeneland and has not yet announced his intentions with the colt. On September 20, it will be 30 years since the famous 'battle of the sexes' tennis match between world number two Billie Jean King and Bobby Riggs, in which feminine honour was restored by a straight-sets thrashing of the chauvinistic Riggs. More than 30,000 fans at the Astrodome, as well as a national television audience, lapped it up that day and have unfailingly continued to do so whenever another battle-of-the-sexes promotion has been cobbled together over the subsequent three decades. Racing's version happened at Del Mar, California's seaside track, on Sunday when Pat Valenzuela guided Chester's Choice to a rallying victory by a mere nose over Woke Up Dreamin (Julie Krone). Valenzuela and Krone have an ongoing rivalry of serious proportions. At the current Del Mar meet, Valenzuela is top of the jockey standings with 47 wins, a mere one victory ahead of the champion female rider.