Online trolls continue to attack him but Olympic champion Mack Horton says he has no regrets over his controversial Rio Games campaign.Horton revealed he was still copping hate on social media after branding Sun Yang a drug cheat at Rio before triumphing over his Chinese rival to claim 400m freestyle gold.And the 20-year-old did not expect it to go away any time soon as he prepared to return to the pool at this weeks national short course titles in Brisbane.Asked if he would have done anything differently at Rio in hindsight, Horton told AAP: Not a thing.I would do everything exactly the same.I liked the way it all turned out.Horton was still adamant he had helped champion the need for clean sport in Rio by targeting Sun, who had served a secret three-month ban in 2014 for a banned stimulant.But clearly it came at a cost.Horton was provided a not so subtle reminder that Suns outraged fans still had it in for him recently.Horton was inundated by vile responses when he revealed he had a cancerous mole removed from his chest thanks to a tip from an eagle-eyed fan.Horton copped it after using Twitter and Instagram to thank the fan who had emailed the swim team doctor to say the Olympic champ should get the mole checked.It was pretty crazy. I knew I had to eventually get it checked out because I had noticed it grow, but this person saying I should do it really made me finally go out and check it, Horton said of his recent surgery.The social media flak? It doesnt really bother me.I am still on Twitter and Instagram and still copping hate but I guess I am used to it now.I am pretty addicted to it (social media), but I dont even see that (trolling) any more.Horton had plenty of time to grasp what he had achieved in Rio on a five-week European holiday with his girlfriend.But Horton reckoned he may never fully comprehend the fact he claimed 400m gold on Olympic debut.I am not even close to getting my head around it, he said.Especially now because I havent swum for a while.I dont think I will realise until I finish swimming.Kevin Shattenkirk Jersey .com) - The women will also have a new champion at the Australian Open. Joe Kocur Jersey . 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Young formally announced his retirement Friday after returning to Rangers Ballpark, his baseball home for all but the last of his 13 major league seasons.WEST LAFAYETTE, Ind. -- Maybe a September bye week will help a struggling Purdue defense.The Boilermakers (1-1), who will host to Nevada (2-1) on Saturday, appeared a step slow in surrendering 512 yards and five touchdowns to Cincinnati in their last game, a 38-30 loss on Sept. 10.Purdue ranks last in Big Ten scoring defense (31 points per game), last in total defense (455 yards) and last in rushing defense (219 yards).On Tuesday, fourth-year Purdue coach Darrell Hazell disagreed with the theory that the Boilermakers defensive team speed was to blame for the loss.I didnt sense that at all, Hazell said, We were in position to make four or five critical plays in that (Cincinnati) game, and we didnt make the plays. But I didnt sense that their speed was any better than ours.Instead, Hazells theory centers on Purdue adjusting to a new defensive scheme that may be causing some defenders to hesitate at the point of attack rather than simply reacting and tackling.The message this week is no hesitation, Hazell said. Weve got to eliminate hesitation. The other part is just being able to make those plays that have nothing to do with hesitation, like being in posittion to make those plays.ddddddddddddPurdue junior linebacker JaWhan Bentley, who ranks fourth in the Big Ten with 8.5 tackles per game, noticed the hesitation element in the Cincinnati game. He said that must be corrected before facing a Nevada team that averages 208.3 rushing yards.We struggled tackling, definitely, early on in the Cincinnati game, Bentley said. And there were a few deep balls that we didnt see. Like coach says, its about tackling and making plays on the ball, along with recognizing that its third down and we have to get off the field.Purdues defense should receive a boost this week when two starters -- end Austin Larkin and cornerback DaWan Hunte -- return to the lineup after missing the seasons first two games because of ankle injuries.Game notesLinebacker Jimmy Herman remains questionable with a hamstring injury. ... Purdue starting running back Markell Jones, who missed most of the second half against Cincinnati with a shoulder injury, used the bye week to rehab and is expected to start against Nevada. ' ' '