BOSTON (CBS) -- Five-time Boston Marathon champion Tatyana McFadden, is unable to participate in this year's race. The wheelchair athlete announced Thursday that she is dropping out because of a medical reason.
"Boston is special to me and I love this race so much because it has so much meaning to me," McFadden wrote on Twitter.
In 2017, McFadden was diagnosed with a blood clotting disorder, something, she said, that leads to iron deficiency.
"Sadly when I went in for my appointment here in Boston my levels were at an 8 when they should be in the 30s," McFadden explained. "I have a great medical team that will get me back on track and looking forward to a healthier fall full of marathons."
Last year, McFadden completed the six Abbott World Marathon Majors.
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