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Former England captain Ollie Phillips has predicted that rugby Sevens will provide a cracking spectacle at the Rio Olympics. The Great Britain squads for mens and womens competitions are set to be announced in London on Tuesday.And Phillips, who skippered England during a glittering Sevens career that also saw him named 2009 world Sevens player of the year, is relishing a six-day tournament which starts at Deodoro on August 6.Its brilliant that rugby is part of the greatest sporting spectacle on the planet, and that both our men and women get a chance to be a part of that, he told Press Association Sport. To win a gold medal, for most sportspeople, is the biggest accolade you can have.I think the Olympics will get a cracking spectacle. There is nothing, really, that exists within the Olympics whereby the action comes very thick and fast, and there is always something going on. Sevens is short, sharp, with loads of points and a carnival atmosphere.GBs men and women have built for Rio by taking part in a series of preparation tournaments -- the men triumphed on successive weekends in Exeter and Gdynia, Poland earlier this month -- with final 12-player groups now ready for unveiling.The men have been drawn alongside New Zealand, Kenya and Japan in Rio, with the women facing Canada, Brazil and Japan during pool stages that will see the top two teams from each of three groups -- plus two best third-placed sides - securing quarterfinal places.Phillips ex-England Sevens colleague Simon Amor is head coach of the mens squad, and while injuries have ruled out two initial training squad members -- Wasps scrum-half Joe Simpson and Welshman Luke Morgan -- it is expected that Amor will be able to parade a powerful final contingent.What I like about Simons [training squad] selection is that most of the players have been playing Sevens all year for England, Scotland or Wales, so their fitness levels will be right up there, Phillips added. In Sevens, there is an expectation for players to be supremely fit.A lot of it in Sevens is just about the core skills that lots of people take for granted -- your handling, passing, tackling and how accurate you are at the breakdown.Sevens puts a huge magnifying glass over the core components of anyones game. There is no hiding. If you miss a tackle in 15-a-side, sometimes that can be recovered. In Sevens, more often than not, it cant be.Fifteen-a-side world stars like Bryan Habana and Quade Cooper failed in their attempts to secure respective Rio selection for South Africa and Australia, and while New Zealands Sonny Bill Williams made the final cut, Phillips has underlined how big the switch to rugbys abbreviated version can be.If you look at someone like Sonny Bill Williams, he came into the Sevens environment and it took him a good three tournaments to get used to the game in terms of what he was doing, how to play and what decisions to make, Phillips said. Players have almost become specialist Sevens players. There is a lot more focus on some players doing nothing but being out and out Sevens now, and that has seen the game grow.It is a challenge going from 15s into Sevens. You cover a lot more yardage, there is a lot more running. It is more about agility and speed. Also, the recognition of space. In 15s, there is less space and it is crowded with players, and on a Sevens field, it is all about appreciation of space, knowing when to take the gap between you and the defence or when to hold on and push out wide.The HSBC World Sevens Series has grown from six tournaments to 10, and the actual game of Sevens is really exploding. I think the Olympics will contribute massively to that. Scarpe Nike Scontate . Tomas Berdych and Radek Stepanek defeated Nenad Zimonjic and Ilija Bozoljac 6-2, 6-4, 7-6 (4) on the indoor hard-court at Belgrade Arena. The victory improved the Czech pairs impressive cup doubles record to 14-1. Air Max Plus Uomo . The showiest items on Calgarys lot were forwards Mike Cammalleri and Lee Stempniak. Both will be unrestricted free agents this summer. http://www.airmax90scarpescontate.it/air-max-90-rosa-scontate.html . On June 12, just as the sun sets on the magnificent historical city of Sao Paulo the inventors, innovators and purveyors of “joga bonitowill” open their campaign. The opponent, Croatia and all its football might and will. As opposites do attract we are set for a corker of an opener. Air Max 90 Uomo Ingrosso . 10 Texas A&Ms offence dominated as usual against SMU. Air Max 90 Blu Scontatissime . Barcelona also left injured defenders Carles Puyol, Javier Mascherano and Jordi Alba out of its squad for the trip to Glasgow. That means that Marc Bartra will probably start again in the centre of the defence alongside Gerard Pique. SPA-FRANCORCHAMPS, Belgium -- Fernando Alonso will start the Belgian Grand Prix behind Lewis Hamilton at the back of the grid after a qualifying engine failure forced Honda into another engine change.Alonso stopped on track having failed to complete a lap in Q1, his second failure of the weekend with Hondas upgraded power unit. His first came after a water leak on the MGU-H in FP1, which led to a new engine and grid penalty ahead of second practice, before an anomaly was detected on Saturday morning in FP3. Despite that anomaly, Honda felt Alonso would be fine to compete in qualifying -- something F1 chief Yusuke Hasegawa admits was a mistake.This morning we saw some low oil pressure, so we had to stop the session, Hasegawa said. We checked the data, and we adjusted the oil pressure. We thought we could do that, and take a risk to join qualifying. Actually my judgement was a mistake and it was not good, so we have to change the engine for tomorrow.Despite the succession of power unit failuress with its upgrade, which Honda spent seven development tokens on, Hasegawa does not think there is a deeper problem with the manufacturers new power unit.ddddddddddddSo far we believe it is a coincidence and not related to the new-specification update engine. But we have to be mindful that we have not had enough time to check the engine.Alonso will now get another penalty ahead of the grand prix, which comes on top of the 35-place penalty he had already incurred with the initial change. If Honda changes all six components he will be left with a 70-place grid penalty -- five more than Lewis Hamilton has