PHOENIX -- The NCAA Tournament has gone through some massive changes in recent years, the biggest being an expansion to 68 teams.Dont expect any more big changes anytime soon.Though there are annual quibbles about which teams should make the field, the format for one of the biggest spectacles in sports works and the NCAA has no interest in messing with it.Over the past many, many decades, the core is really solid, so its what can we do to enhance it without taking away from that core, Mark Hollis, chair of the NCAAs Division I mens basketball committee, said Monday.Because of the intricacies of the NCAA Tournament, I would challenge thats something you wouldnt want to touch. We live in a society where we want to change, improve everything, but the core of it is pretty good.The NCAA Tournament field expanded from 53 to 64 teams in 1985, a format that remained in place until a play-in game was added in 2001 and expanded the bracket to 65 teams.A big change came in 2011, when the NCAA Tournament expanded the field to 68 teams, with the last four to get into the tournament playing in the First Four.The larger field has helped increase the chances for upsets, which have come fast and furious over the past several seasons.The audience has expanded with the field; the 2015 NCAA Tournament was the most-watched in 22 years, averaging 11.3 million viewers.Is it (expansion) possible in the future? Sure, anythings possible, but I dont see that in the short term, said Dan Gavitt, NCAA vice president of mens basketball championships. The core of it and the thing that makes it so incredibly popular is whats protected by this committee, so by and large the traditions that make March Madness the way it is will stay.The NCAA has discussed moving the First Four from Dayton, Ohio, or at least expanding it to two sites, but has had a hard time justifying it.Since becoming the First Four site in 2011, Dayton has been a perfect host. The teams are selected on Sunday and the games are Tuesday night, but the city is always ready and the games usually sell out despite the short turnaround.Playing games at a second site would make it easier for teams in the West travel-wise, but it may come under the category of why fix whats not broken.Thats the X factor: If we you move it, consider another location, can they deliver that incredible college basketball feel and experience? Gavitt said. Its a risk because you dont know. Some of the other places where we have first and second rounds somewhat depend on what teams are playing there. Thats always going to be the trick when it comes to First Four.The NCAA is looking at changes to the regional rounds of the NCAA Tournament.The tournaments first weekend is exciting, the games spread across the country and upsets coming at every turn. The Final Four has its own vibe with a national championship on the line and so many other activities surrounding the games.The regional rounds determine which teams will play in the Final Four, but often dont get the hype of the tournaments first and third weekends.To enhance the regionals, the NCAA is looking at making those games more of a stand-alone event like the Final Four by adding concerts and fan experiences to go along with the games.Itll never approach the size and scope of the Final Four, but for those fans, those four teams in those three days are arguably as good as the Final Four the following weekend, depending on who the teams are, Gavitt said. So to make it a bigger and more exciting event for that locality would make it special.---More AP college basketball at http://collegebasketball.ap.org Cheap Adidas NMD .com) - Yankee Stadium is the home of the Bronx Bombers, but on Sunday afternoon it will open its gates to host the latest addition of the Hudson River Rivalry. White Adidas NMD 2018 .ca NFL Power Rankings, overtaking the Denver Broncos and remaining ahead of NFC competition San Francisco, Carolina and New Orleans. http://www.cheapadidasnmd.com/ .com) - Rafael Nadal, Andy Murray and Roger Federer were easy first-round winners Tuesday at the Australian Open. Cheap Adidas NMD Shoes For Sale . -- The St. Johns IceCaps weathered a wild first period with the help of goaltender Jussi Olkinuora, before finding offensive inroads in the second. Adidas NMD Outlet . The third-ranked Ivanovic, who won the event in 2008 and 10, served five aces and broke Wickmayer, also a former winner in 2009, five times. "The result looked easier than it really was," Ivanovic said. Mark Sutton talks ESPN through his favourite shots from the dramatic Brazilian Grand Prix.Collision courseCamera - Nikon D5 body | Lens - Nikkor 200-400mm F4 ?| Shutter speed - 1/1000th of a second | Aperture - F5.6 | ISO - 1600I was at Turn 10, the hairpin, but I kept seeing people crash and thought Im in the wrong place here. So I moved up the circuit and its honestly mindblowing how quick they are going in the rain, pulling out of the spray of other cars. I was just photographing the photographers standing trackside and then saw Massa have a moment at the top of the corner. He clipped the barrier and I just kept shooting -- I had the 400 on so it was a bit tight. When he hit the barrier it was more frontal, so it was a bit of the front wing came off. I didnt really see what happened after that -- I just knew I had to get the wide angle on for the next shots of him getting out of the car.Massas final farewellCamera - Nikon D5 body | Lens - 70-200mm F2.8 | Shutter speed - 1/500th of a second | Aperture - F5.6 | ISO - 1600This was a walk of emotion, coming out of the car and waving to the crowd over the barrier. Then one of the marshals gave him a flag and I thought well, thats the shot, as he walked away. I couldnt get any closer because that was the track, he actually shouldnt have been where he was but it created a great picture. I could see the flag was floating above his head so I was waiting for a shot of when I could see his face. When I first sent these back at the media centre I was in such a rush I dont think I sent the best shot from this sequence, I sent one where you cant see his face.I was changinng lenses in the rain and it was a rush, to be honest.dddddddddddd Youre waiting for those moments to happen and when they do you have a smile on your face in the background, you just go with it. There was still the rest of the race to finish so you have to focus on your job. nRain delayCamera - Nikon D5 body | Lens - Nikkor 70-200 F2.8 | Shutter speed - 1/320th of a second | Aperture - F11 | ISO - 1600The rain delay made for a chaotic afternoon. The race was on-again off-again several times and it made it chaotic. One good shot to come from it was the train of cars behind the safety car. Its not often you get this sort of shot in a race -- theres obviously the formation lap, but this had the added benefit of the spray, creating a good picture.Because of the chaos of the race I missed Marcus Ericssons crash as I had been positioned elsewhere on the circuit.20 down, one to goCamera - Nikon D5 body | Lens - Nikkor 200-400mm F4 | Shutter Speed - 1/640th of a second | Aperture - F6.3 | ISO - 1000This was a good shot between Lewis Hamilton and Nico Rosberg on the podium. Often in these last few years we havent seen much between them in the last few seasons when theyve been up there, its often tense and they sometimes act like the other one isnt there. This has been the story of the season, theyve been fighting all year. I think whoever wins they will hug each other and shake hands and say the best man one. I think theres more respect evident between them this year than in previous years. 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