RIO DE JANEIRO -- She was two points from winning her opening match at the Rio Olympics in straight sets against underdog Kristen Flipkens of Belgium, and two points from overcoming a virus that had plagued her since her last tournament in Montreal. But it was bad news for Venus Williams when Flipkens fought back and dragged her into a third set. Now nearly another hour had passed since then, and Williams was clearly reeling in the sticky 80-degree heat.This is how life is now for Venus at age 36. She can beat anyone or lose to anyone on a given day. Flipkens is the 62nd-ranked player in the world. Venus is No. 6 -- her highest world ranking since 2011 -- after a very nice summer. But Saturday night she and Flipkens found themselves in a dogfight for every point. Williams had already taken a long break between the second and third set -- to get sick off court, as it turned out, according to U.S. coach Mary Joe Fernandez.In the end, it was all too much for Williams to overcome. She missed another chance to serve out the match at 5-3 in the third, and Flipkens -- after a couple of hiccups herself -- almost certainly ended Williams Olympics singles career with her 4-6, 6-3, 7-6 (5) win.The question now is whether Williams, who remained too sick and wracked by cramps after the match to meet the press, can rebound in time to play her doubles match with her younger sister Serena Sunday. The Williams sisters have won three of the past four womens doubles gold medals awarded, and Serena is also the defending Olympic singles champ.Id be highly surprised if Venus didnt play, just because its been her goal for the last four years, Fernandez said. Shes really ill right now. Shes dehydrated. She fought so hard tonight, its just too bad she couldnt find a way to get to the finish line. Shes still processing this, but of course its going to be disappointing. Shes been such a terrific champion, to win so many medals. But hopefully she can recover in time and get another one here [with Serena].Knowing Venus, Fernandez said, I think she will.Venus is at the point in her two-decade-long pro career when any year could be her last. Yet something changes about her when she touches down at the Olympics. She has been to five Summer Games now -- more than any tennis player ever. Shes the Grand Dame of her sport. When she showed up here Wednesday with some bright red streaks in her braided hair and enthused about how much she still likes pin trading, she sounded as if she were a giddy kid at her first Olympics.She has talked all summer about how much fun its been to point toward Rio and resume playing doubles again with Serena, something they rarely do on the regular tour anymore because of the toll it can take, and she talked about looking forward to meeting the virtuoso athletes here in other sports. But the reality is many of them swoon when they encounter the Williams sisters. I got to meet Venus and Serena today -- changed my life, American fencer Ibtihaj Muhammad volunteered with a laugh earlier this week, adding it had always been a wish of hers.Until Montreal, it seemed as if Venus had been rejuvenated all summer just knowing the Olympics were sitting out there, waiting. It didnt seem like a coincidence that she had been playing some of her best tennis in years over the past few months.Her advance to the fourth round of the French Open was her deepest run at Roland Garros in six years, and she followed that up a few weeks later by rolling to the semifinals at Wimbledon, her best finish there since 2009.Had she beaten Angelique Kerber instead of losing to her in straight sets, she wouldve set up her first Grand Slam finals showdown against Serena in seven years as well. Which is yet another reason this loss, for Venus, will feel like a blow.She had every reason to like her medal chances coming into Rio, even if French Open champ Garbine Muguruza wouldve awaited her in the quarters, and then Serena in the semis after that. (The Muguruza match wouldve been harder to predict than you might think. Muguruza competes for Spain but she could be especially motivated to win in South Americas first Olympic Games because she was born in Venezuela, and still has plenty of family there. On the other hand, she has been streaky since winning her first career Slam and Venus owns a 3-0 career record against her. Now shell have to wait to see if she can push it to 4-0 somewhere else.)Williams still suffers from Sjogrens syndrome, an unpredictable, fatigue-causing autoimmune disease, though she rarely talks about it much anymore and Fernandez insisted it wasnt what ailed Williams Saturday. Venus never knows when her energy will spike or crash because of the disease. And she never knows when her game will spike and crash just because the years are catching up to her.A few weeks ago, Venus advanced to the final at Stanford. What happened next -- a three-set loss to unheralded Johanna Konta -- underscored the same thing this loss to Flipkens did. Venus can look great and Venus can look highly vulnerable, often within the same match.The difference Saturday was this is the Olympics. Fernandez was right: This defeat hurt worse. If someone as decorated and successful as Venus keeps coming back to the Olympics as often and enthusiastically as she has, it cant be all out of duty or obligation.It must be love. Under Armour Cheap Shoes . Terms of the deal were not immediately available. The 26-year-old finished last season with Clevelands Triple-A affiliate in Columbus after signing with the Indians in August. Cheap Under Armour Free Shipping . 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ARLINGTON, Texas -- Former longtime pound-for-pound king Roy Jones Jr. told ESPN on Friday night that he is considering retiring from boxing as he recovers from a torn biceps suffered in his last fight.In a Pensacola, Florida, homecoming fight Aug. 13, Jones won a shutout 10-round decision against journeyman Rodney Moore in a cruiserweight bout despite tearing his right biceps in the fifth round.If I stop now, Im good with that because I got a win in front of my fans in that last fight, Jones said Friday.Jones (64-9, 46 KOs), who is part of the HBO PPV broadcast team that will call the Canelo Alvarez-Liam Smith card Saturday night at AT&T Stadium, rolled up his sleeve to show off the scar from the surgery he had a few days after the fight.My biceps, it just popped in the fifth round, Jones said. My right hand was dead after that even though I threw it a few times. But its already feeling a lot better. Im not sure if this is the end or not. I may fight again if I feel like it, but I dont know if I will feel like it.Even if he feels like fighting aagain, Jones, who turned pro in 1989, said he would be out until at least November while recovering from the surgery.dddddddddddd.Jones, 47, is about a decade past his best, when he was the untouchable king of boxing who won world titles in four weight classes: middleweight, super middleweight, light heavyweight and heavyweight.Jones said once his arm is recovered he will go back into the gym and see how he feels.But if I stop now Im good with it, Jones said. I still might go on, but if I just stop, Im good with it.It aint about the money. I want to fight because I love to fight. I like testing myself, but Im not trying to fool myself. Im not 32 anymore. Im 47 and know I cant fight forever, but Im not trying to prove nothing to anyone. But if I have fought for the last time, I can live with that. It was big for me to go home to Pensacola and get a win in front of all those fans who have supported me for so many years. ' ' '