Red Bull boss Christian Horner says the team has shifted all its focus to 2017 and Formula Ones next generation of cars.Next years regulation changes will significantly alter the look and speed of F1, with wider cars and fatter Pirelli tyres expected to lead to a dramatic reduction in lap times. Big rule changes have traditionally led to a shake-up of the pecking order and 2017s should place more importance on aerodynamics, an area Red Bull has traditionally excelled.Asked about upgrades for this weekends Singapore Grand Prix, Horner said: We have a few little bits and pieces. Now the whole factory is focused on 2017. There are little bits and pieces [for the 2016 car] but nothing major.Red Bulls strongest race of the season was on another street circuit at the Monaco Grand Prix, where Daniel Ricciardo took a maiden career podium, only for a botched pit stop to cost him victory. Despite going into the summer break on a high, Red Bull struggled at the Italian Grand Prix last time out, though Horner does not think that is representative of what the team should expect this weekend.It is a different type of circuit, he said. We expect to be stronger. Hopefully we can get closer to Ferrari and give them a harder time than we did in Monza.Monza is a pure horsepower circuit, slow-speed corners, long straights, so its very clear where things are at. Were in a better position to where we were 12 months ago, but there is still some way to go to close that down.But we know that there are circuits coming up which should suit more the characteristics of our car. Singapore, Malaysia, Japan, Mexico are theoretically all tracks which should be reasonable for us.Williams technical chief Pat Symonds recently revealed Red Bull had a big say in styling the finer details of next years cars. Mariano Andujar Argentina Jersey . 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Blackwood, 28, has played the last three seasons in the San Diego Padres system, including the past two summers with Class AA San Antonio of the Texas League.The International Olympic Committee will target Russia, Mexico and Kenya in pre-Olympic drugs testing ahead of the Rio Games. Olympic medallists from the Beijing 2008 and London 2012 Olympic Games will also be targeted in extended re-analysis of drug test samples, the IOC announced on Wednesday.Thirty-one athletes tested positive following re-analysis of samples from the 2008 Games - as did a further 23 from London 2012 - and the IOC will now take further measures in its battle against doping, with particular scrutiny placed on athletes from Russia, Kenya and Mexico, where the testing programmes are non-compliant. Special focus will be put on countries where the testing programme is non-compliant - Kenya, Russia and Mexico, the IOC said in a statement on its pre-Olympic testing programme after an executive board meeting on Wednesday.An IOC statement added: The re-analysis programme for the Olympic Games Beijing 2008 and London 2012 will be further extended.Together with WADA (the World Anti-Doping Agency), we will target medallists from both Olympic Games for possible re-analysis. Lord Sebastian Coe has rejected claims London 2012 may have been the dirtiest Olympic Games in history The announcements were made as part of the IOC executive boards five-point action plan tto tackle doping ahead of the Rio Games, which open on August 5.ddddddddddddThe fight against doping is a top priority for the IOC, which has established a zero-tolerance policy, the statement added.The IOC will not hesitate to punish anyone within its reach responsible for using or providing doping products or methods, including officials, coaches and other members of the athletes entourage. Rio is preparing to host the Olympics in August The Olympic fate of Russias track and field athletes - suspended by the IAAF, athletics world governing body - is to be determined on June 17 after their suspension.The IOC will then review the entire doping programme and measures being taken for Rio 2016 in October and lead the drive for independence.It added: The IOC will continue to push for all testing independent from sports organisations and to harmonise national and international testing under the leadership of a new entity.The IOC will lead by example and establish such an independent process, working with WADA, to be in place for the Olympic Winter Games PyeongChang 2018. Also See: Russia seeks doping compromise Russia confirms 2012 failed tests Federations could be banned ' ' '