Sally Pearson says she would have risked the end of her athletics career by trying to overcome a hamstring injury and compete at the Rio Olympics.The Olympic 100m hurdles champion says shes gutted at being forced to withdraw from the Rio Games after injuring a hamstring tendon at training on Monday.I could have gone to the Olympics and still competed but competing and going out to the Olympics, it means different things to me, she told the Nine Network on Wednesday.I go there for 100 per cent effort and I wouldnt be able to give that effort that I would like to bring ... and the risk of re-injuring and causing a lot more damage and probably not coming back was very, very high.And I still have Gold Coast 2018 (Commonwealth Games) on my mind ... if I want to be able to come back for that stronger, fitter and faster than ever, then I need to take this time to make sure my body has healed.Pearson had returned to her Gold Coast base to find fitness and form after struggling in three comeback races in Europe earlier this month.The races were her first competitive outings after a year-long absence because of a broken wrist and a torn calf muscle suffered in a fall during a race in June last year.Her comeback was stalled by Achilles and separate hamstring issues before Mondays setback.It is a hard time for me ... Im disappointed and Im gutted, she said.Everyone knows Im a competitor and Im a fierce competitor and I like to represent my country proudly at any competition that I go into.Unfortunately it is the biggest sporting event in the world that I am going to be missing out on and I cant be a part of. Its upsetting.Pearson said she was finally feeling near her best until her fresh injury on Monday, My body finally was starting to feel normal again, it was starting to feel the speed, the strength - it was all coming together, she said.Unfortunately on Monday, my body just didnt agree with me this time.It couldnt push that little extra bit to the edge, I just tumbled over the edge unfortunately this time, and I tore my hamstring.The 29-year-old said the injury was to her biceps femoris tendon in a hamstring.Its not so much just like a tear (sic) hamstring and youll be right in a couple of weeks, it is a tendon injury, Pearson said.The biceps femoris has two heads and I split those two heads.Doing something like that in a tendon injury, it takes a long, long time to get better ... and unfortunately seven weeks out (from the Rio Games) I have done a tendon injury and its not going to allow me to get back in time for the Olympics. Robin Yount Brewers Jersey . 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STILLWATER, Okla. -- Mason Rudolph passed for 392 yards and three touchdowns to help Oklahoma State defeat No. 22 Texas 49-31 on Saturday.Justice Hill rushed for 135 yards and a touchdown and Jalen McCleskey added 109 yards and two touchdowns receiving for the Cowboys (3-2, 1-1 Big 12), who had lost their previous eight home games against the Longhorns (2-2, 0-1).Oklahoma State blocked three extra points in the first half, matching a school record for blocked kicks in a game. On the first one, defensive tackle Vincent Taylor came up the middle for the block, picked up the ball and ran with it before delivering a perfect option-style pitch to Tre Flowers in stride. Flowers took it into the end zone for two points and, instead of a 14-all tie, Oklahoma State led 16-13.Rudolph passed for 310 yards and three scores and ran for a touchdown in the first half to help the Cowboys take a 37-25 lead.Oklahoma State receiver James Washington was knocked out of the game in the third quarter after taking a hit to the head from Texas linebacker Malcolm Roach. Washington had three catches for 91 yards and a touchdown for the Cowboys.Texas runnning backs took a beating.ddddddddddddChris Warren III missed the second half with a knee injury. He ran for 106 yards on 10 carries in the first half. DOnta Foreman left the game in the third quarter with an abdominal injury after rumbling for 148 yards and two touchdowns.THE TAKEAWAYTEXAS: The Longhorns, who gave up 47 points to Notre Dame and 50 to California, had an extra week to prepare for the Cowboys. It didnt matter, as the Cowboys rolled up 555 yards.OKLAHOMA STATE: The Cowboys bounced back from their loss to Baylor and now are in position to be a factor in the Big 12 race.POLL IMPLICATIONSTexas likely will drop out of the Top 25. Oklahoma State has an outside chance of getting back in, but the controversial loss to Central Michigan could prove costly here.UP NEXTTEXAS: The Longhorns play Oklahoma in Dallas next Saturday.OKLAHOMA STATE: The Cowboys will host Iowa State on Saturday.---AP college football website: www.collegefootball.ap.org.---Follow Cliff Brunt on Twitter (at)CliffBruntAP. ' ' '