Sky Sports pundit Andy Walker says its time for Celtic to part company with manager Ronny Deila following their 2-1 defeat to Aberdeen at Pittodrie.It was a miserable night for the Scottish champions, who have now suffered back-to-back defeats following their shock loss against Ross County in the Scottish League Cup semi-final last weekend.Celtics lead at the top of the Scottish Premiership was cut to three points as goals from Jonny Hayes and Simon Church earned Aberdeen a 2-1 victory and former player Walker says owner Dermot Desmond has a big decision to make over Deila, who claimed on Tuesday he has the boards backing. He told Sky Sports: I didnt see any reaction from the Celtic players today after the weekends defeat to Ross County.I didnt see any reaction during the game against Ross County and I didnt see any reaction when they went 2-0 down tonight and I think you can ignore what the Celtic board are saying.This is now a call for Dermot Desmond. If he has got his finger on the pulse of the Celtic support, who continually booed the players at the end of the game, then he will realise hes got a big decision to make. Ronny Deila admits Celtics 2-1 defeat to Aberdeen puts pressure on him Do you trust Ronny Deila to come up with the type of results that will not only get Celtic the title but a bit of success in Europe?If it was up to me I would change the manager tomorrow.Deila has been under pressure all season following his teams early exit from the Champions League against Malmo.Desmond has previously backed his manager, claiming the team is better than they were last season, but Walker says performances are not good enough for a team that has a huge financial advantage over their domestic rivals. Aberdeen are now just three points behind Deilas side He added: Celtic have a huge advantage in terms of resources and everything you want.How did they defend tonight? The amount of long balls that were played when Celtic were 2-0 down and they didnt go and compete for them.I know thats not down to the manager but the manager has to make the kind of changes and type of signings that can get Celtic success on the park and all of that is up for serious debate. Celtic captain Scott Brown battles with Jonny Hayes on Wednesday night Its not good enough and Celtic could well go on and secure the title but would you trust this manager to get you the type of results the Celtic supporters are looking for?I think if you have got your finger on the pulse of the Celtic support I think there is a growing number who dont buy into what Ronny Deila is continually saying.Theres no improvement, theres nothing special and theres no notable victories and I think as a Celtic manager that is what you have to come up with.Also See:Match reportAs it happenedTableLive on SkyAntti Suomela Jersey . 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Custom San Jose Sharks Jerseys . Miller finished in two minutes, 6.09 seconds, one day before the first medal race on the Alpine schedule. The 36-year-old American also turned in the top time in Thursdays opening training session.NEW YORK -- NBCs plans for the Olympics in Rio over the next two weeks define the term exhaustive.The network, its cable sisters and Olympics website plan 6,755 hours of coverage through the Aug. 21 closing ceremonies in Rio de Janeiro. Obsessive fans have plenty of viewing options, since every Olympic competition will be available live online along with the popular events airing in prime time on NBC.That includes Fridays opening ceremony, which is oddly being aired via tape delay despite Rio being only one hour ahead of Eastern time in the U.S.Bob Costas is the prime-time host for his 11th Olympics, and his continuity defines NBCs coverage. While there are new wrinkles every year -- Ryan Seacrest hosts a new late-night show, Mike Tirico joins from ESPN -- the NBC playbook and personnel remain very consistent. NBCs 170-member broadcast team includes a stable of former athletes, including swimmer Rowdy Gaines, gymnast Tim Daggett and diver Laura Wilkinson, that has combined for 59 Olympic medals.NBC executives strongly believe in how they cover the Olympics, particularly the menu of sports offered on the network each night, and consider the events ratings strength is a public endorsement. The company paid $1.2 billion for the broadcast rights.The opening ceremony will be delayed an hour before being shown on NBC because the network wants the entertainment spectacle, which was seen by 40.7 million people in 2012, to be shown completely in U.S. prime time. NBC was also reportedly upset that because the Portugese language is being used for the parade of nations, the U.S. team (or Estados Unidos) will file into the stadium relatively early.In what is becoming an Olympics tradition, the run-up to the games was filled with foreboding stories: the Zika virus, polluted water, security concerns. HBOs Real Sports aired a thorough investigation last month into the International Olympic Committee and demands placed on host countries, but dont expect something similar on NBC.The network plans to address many of the issues unique to Rio early, perhaps in a one-hour preview scheduled for Thursday night, but will turn to the competition unless something unusual happens.I think when people are tuning in to watch the Olympics, theyll want to watch the Olympics, said Jim Bell, executive producer of NBCs Olympicss coverage.dddddddddddd.Unlike previous Summer Games in Europe, Asia and Australia, the Rio games provide NBC a favorable time zone allowing it to televise many events live in swimming and track and field. With only a few exceptions, those sports -- along with gymnastics and volleyball -- get virtually all of the attention on NBCs prime-time broadcast.The rest of the sports are spread across 10 other networks, many with particular specialties.The Golf Channel, for example, concentrates on the Olympic return of its namesake sport. NBC executives expressed disappointment that several of the worlds top golfers, including Jason Day, Dustin Johnson, Jordan Spieth and Rory McIlroy, are staying away from the event because of concerns about the Zika virus, and suggested theyd someday regret it.Bravo will be the Olympic home of tennis. NBC is also setting up speciality channels for both basketball and soccer, although those sports will also be shown on other networks.The NBC Sports cable network will be the busiest, airing 330 hours of Olympics programming covering 20 sports. On most days of the games, NBCSN will air Olympics coverage from 8 a.m. to midnight. Other coverage will be spread around CNBC, MSNBC and USA. Telemundo and NBC Universo will narrate events in Spanish, focusing on sports and athletes popular in Latin America.NBC, which likes to use the Olympics as a laboratory for new technology and ideas, will also distribute 83 hours of coverage in the 4K Ultra HD format.Once again, the NBC Olympics website offers live streams of every competition. To access this material, a customer must validate an account with a cable or satellite provider.The attention speaks to the huge economic opportunity the games provide NBC in a fragmented media world. NBC is betting, and in fact has advertised the Olympics, on the idea that viewers can use a pick-me-up from a drumbeat of bad news.Theres been a lot of tough things going on in the world, Bell said. I think it will be nice, fingers crossed, if we can have a couple of weeks to give people something to cheer about.---Follow David Bauder at twitter.com/dbauder. His work can be found at http://bigstory.ap.org/content/david-bauder ' ' '