NEW YORK -- Serena Williams turned heads when she made a cameo in Beyonces Sorry music video -- where she twerked heavily -- and now the tennis star is releasing her own dancing video.Williams, who released a new video Thursday on YouTube that features the 34-year-old dancing in a variety of styles, says dance is one of her favorite hobbies.This video really kind of taps into a lot of emotions that I have and a lot of emotions that I feel. And one of the things that I say is that ...I always keep climbing, and thats something that really resonates with me, Williams said in an interview on the set of the video last week.Everyones like, `Why are you still playing? Why are you doing this? `Cause Im always challenging myself, Im always keeping myself climbing.Williams is currently battling a shoulder injury, but said the dancing she filmed did not involve her shoulder. The top-ranked athlete began her bid for a record-breaking 23rd major title in the U.S. open this week.On the video set last week in Brooklyn, New York, she said she was just moving more or less my legs. Right now (my shoulder is) doing OK. Im taking it day-by-day.I work really hard at what I do. Ive had some ups and downs this year but you know ...I always just try to come back and do the best that I can, she added.Williams worked with choreographers Will Willdabeast Adams and Janelle Ginestra for the video along with Delta Air Lines. She said she remembers learning a great deal about dance from Beyonces team of choreographers when she filmed Sorry, which appears on the pop stars visual album, Lemonade.Dancing in the Beyonce video was obviously a lot of fun. I remember being super sore after because I was down the whole time, you know, kind of twerking a lot, she said. I was able to work a lot with her choreographers ...and I really learned so much just about my body movement and also different styles of movement to do.-----Online:Serena Williams dance video: https://www.youtube.com/watch?v=ctsHgAsLn5M Authentic NCAA Jerseys . The Vancouver coach and an announced sellout crowd of 18,910 watched in dismay as the Canucks lost 7-4 to the New York Islanders on Monday night by squandering a 3-0 lead in the third period. Wholesale College Jerseys China . Cote was eligible to become a free agent Feb. 15. Cote helped running back Jon Cornish run for a league-high 1,813 rushing yards en route to being named the leagues most outstanding player. http://www.cheapjerseyschinancaa.com/ . At a news conference Tuesday where it was thought that the fiery Schallibaum may be shown the door after a dismal finish to the Major League Soccer season, team president Joey Saputo said no decision has been made on whether the Swiss Volcano will be back in 2014. Cheap College Football Jerseys . -- The proud fathers huddled near the Dallas Stars dressing room, smiling, laughing and telling stories while wearing replica green sweaters of their sons team. Wholesale NCAA Jerseys . -- Al Jefferson found a groove just in time for the Charlotte Bobcats. LOS ANGELES -- Former champions Georges St. Pierre, Cain Velasquez and T.J. Dillashaw are taking on the UFC in an attempt to form a mixed martial arts fighters association.Current UFC fighters Donald Cowboy Cerrone and Tim Kennedy also announced their participation Wednesday in an organizing effort led by the five fighters and advised by Bjorn Rebney, the former CEO of Bellator.The fighters hope to persuade the rest of the UFCs talent to join them in unified negotiation for a greater percentage of revenue from the UFC. The promotion was sold to the WME-IMG entertainment conglomerate earlier this year for roughly $4 billion, an unprecedented price for a sports property.This is a different kind of fight, St. Pierre said. Even though youre afraid, its time to step up and do the right thing. Its a fight (between) what is right and what is wrong, and we should never be afraid to stand for the virtues, to stand for what is right.The Mixed Martial Arts Athletes Association is the latest attempt to organize fighters in a famously individualistic sport into a collective bargaining unit. Kennedy, St. Pierre and Rebney all spoke passionately about the need to level the playing field between the UFC and its fighters, who are independent contractors.These athletes are risking more for less than any professional athletes on earth, Rebney said. They are paid pennies on the dollar.Rebney also described the UFC as an egregious, predatory monopoly and vowed to secure an unspecified set of benefits for former UFC fighters as part of a settlement for the promotions past revenue-shaaring practices, in addition to improved conditions for current fighters.ddddddddddddOther attempts at a fighters organization in recent years have made little headway or are only in their initial stages, but St. Pierre and Velasquez are the biggest stars to join an effort. St. Pierre reigned as the UFCs welterweight champion and one of its top pay-per-view draws from 2007-13, while Velasquez has won the UFC heavyweight belt twice during an injury-plagued career.St. Pierre hasnt fought in three years, but has publicly claimed he is considering a comeback. He has become increasingly antagonistic toward the UFC during his retirement, even claiming to be a free agent earlier this year when he announced tentative plans to fight again.I know agents will be threatened by UFC, and theyll try to convince their fighters that its a bad idea to join us, St. Pierre said. I know, because Ive been there before. I dont have to work another day in my life, but I want to change things for the right.Four of the involved fighters are represented by Creative Artists Agency, a rival of WME-IMG. Rebney repeatedly declined to identify the financiers of the fighters associations efforts, but claimed CAA isnt financially involved.Rebney indicated the fighters dont intend to form a union, but instead intend to persuade the UFC to listen to them through their unity. Rebney indicated labor strikes could be a possible last resort if the UFC declines to negotiate. ' ' '