SYDNEY -- Nick Kyrgios says hes confident of being fit to lead Australia into its Davis Cup tie against Slovakia in Sydney starting Friday.Kyrgios hasnt played since a hip injury caused him to retire from his third-round match against Illya Marchenko at the U.S. Open nine days ago. But he says the hip is better now and hes playing probably the best tennis I have.The Australia No. 1 told a news conference Tuesday, I just got a niggling injury that came out of nowhere almost. I feel confident and I think we can do great things.Kyrgios will likely team with Bernard Tomic in singles and doubles for the first time since he made his Davis Cup debut three years ago.The Australians, who chose to play the tie on grass at Sydneys Olympic tennis center, must beat a depleted Slovakia team to retain their place in the 16-team World Group for 2017.Slovakia will be without its two highest-ranked players, Martin Klizan and Lukas Lacko. Fake Shoes Canada 2020 . 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Cuban testified Thursday that he was upset when the companys CEO told him news that would reduce the value of his shares, for which hed paid $7.5 million. But he said he did nothing improper when he sold those shares over the next two days. Juan Diazs injury has opened the door for up-and-comer Mason Menard.Diaz, a 33-year-old former unified lightweight titleholder, was scheduled to face former lightweight title challenger Raymundo Beltran on the undercard of unified junior welterweight champion Terence Crawfords title defense against John Molina on Dec. 10 (HBO, 9:35 p.m. ET/PT) at the CenturyLink Center in Omaha, Nebraska.However, Diaz has withdrawn from the bout and been replaced by Menard in the scheduled 10-round bout, Top Rank vice president Carl Moretti told ESPN on Monday.Diaz has been hampered by a herniated disc in his neck as well as either herniated discs in his back or a rib injury. Brian Caldwell, Diazs manager, told ESPN that Diaz was awaiting results of an MRI he had Friday to determine the specific nature of his back problem.He was sparring last Tuesday getting ready for the fight, and he missed a hook and fell to his knees, Caldwell said. He was in pain. He said, Oh, my back! Hopefully, well know more in the next couple of days, but he is disappointed to have to pull out of this fight. I think he would have torn Beltran up. He was excited about being back on HBO.Diaz (42-4, 21 KOs), of Houston, unified three lightweight world titles during his 2004 to 2008 reign but retired in 2010 before launching a comeback. He was scheduled to fight for a lightweight world title but suffered a shoulder injury that required surgery, costing him 18 months, including all of 2015.He returned to action and won both of his fights this year before this latest setback, which could send him into retirement again.He doesnt have to do this for the money, he just loves to fight, so hes taking this a little hard, Caldwell said. But if he never fights again, he still won those world titles, made a lot of good fights and made some good money.ddddddddddddWith Diaz out, Moretti said he has made a deal with promoter Greg Cohen for Menard to take his place.Everything is agreed to, Moretti said. Were putting everything to paper.Menard (32-1, 24 KOs), 28, of Rayne, Louisiana, will take on his most formidable opponent in Beltran (31-7-1, 19 KOs), 35.Beltran, a Mexico native based in Phoenix, earned a mandatory shot at then-lightweight world champion Crawford in November 2014 but lost by near-shutout decision.Crawford later relinquished the title to move up in weight, and Beltran was due to face Japans Takahiro Ao for the vacant belt in May 2015. However, Beltran did not make weight, so the belt was on the line only for Ao. Beltran won by second-round knockout and the title remained vacant, but after he failed the postfight drug test for a banned substance, the result was changed to a no-decision and Beltran was fined and suspended. After a year of being idle, Beltran returned in May and has won both fights since his suspension ended.In addition to televising the live Crawford-Molina and Beltran-Menard bouts, Top Rank has also made a deal with HBO to add same-day recorded coverage of the vacant heavyweight world title bout between Joseph Parker and Andy Ruiz Jr., whom Top Rank promotes, as the opener of an expanded telecast.Parker (21-0, 18 KOs), 24, and the 27-year-old Ruiz (29-0, 19 KOs), who are squaring off for one of the title belts vacated by Tyson Fury, will meet at Vector Arena in Auckland, New Zealand, Parkers home country. ' ' '