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Update: USA Today reported the following about Lotulelei's condition:
The person said it's hoped that it's not a heart condition but rather dehydration, too much sodium in his diet or rapid weight loss in a short timeframe that prompted tests to reveal his heart wasn't pumping at full capacity. Lotulelei dropped almost 10 pounds in three days recently, in part because of the hectic schedule of traveling to the combine and the long days in Indianapolis.
If true, certainly a great development for Lotulelei's draft stock and general health.
Star Lotulelei is one of the best overall players in 2013, a guy many have slated as a top-five pick.
The 6'3'', 311-pound stud defender has a special blend of athleticism and motor that allowed him to be a disruptive marvel along the entire defensive line during his Utah career.
However, Lotulelei won't participate at the scouting combine "after an echocardiogram revealed that the former Utah defensive tackle has a heart condition that requires more testing," according to ESPN.
Chris Mortensen reports that "Lotulelei was discovered to have an abnormally low Ejection Fraction, detecting that the left ventricle of his heart was pumping at only 44 percent efficiency, sources said. The normal range is between 55-70 percent efficiency."
This is a major red flag that could have a significant ripple effect on the beginning of Round 1.
Teams will likely test Lotulelei as closely to the draft as possible to check on his heart condition.