Armstrong Blames Crow's Biological Clock For Split

lance armstrong sheryl crow
Buzz, Heartbreak

Lance Armstrong reveals in a new book that his split with Sheryl Crow was due to her ticking clock.

There are a lot of reasons why Lance Armstrong and Sheryl Crow might have called it quits. His not-quite-ex-wife. Her touring schedule. Those garish, if not well-intended yellow rubber bracelets. The fact that she sang a duet with Kid Rock.

And yet, when the Grammy-award winning singer and seven-time Tour de France champion/cancer survivor finally threw in the towel — after two and a half years of working out, working the red carpet, and working for a cure — it was actually due to something far less glitzy and a lot more human: Crow's 43-year-old biological clock.

"She wanted marriage, she wanted children," Armstrong reveals in John Wilcockson's new book, Lance. "And not that I didn't want that, but I didn't want that at that time because I had just gotten out of a marriage [with Kristin Armstrong], I'd just had kids [Luke, Bella, and Grace]. And yet [we were] up against her biological clock. That pressure is what cracked it." Will Fergie And Josh Duhamel Break Up Over Baby?

Armstrong, who was 34 at the time of their split, insists the two tried to work through things, even seeking the help of a relationship counselor, but to no avail. "I felt like I wasn't ready...I would have been in the future, but not then."

And so they split in February of 2006.

Shortly thereafter, Crow went on to face her own cancer prognosis, survive treatments, adopt a baby boy she named Wyatt, and create a happy life for herself as a single mother.

Armstong, in the meantime, proved that sometimes it only takes an accident to realize you're ready. After being told by doctors that his testicular cancer treatments would leave him infertile, he went on to unexpectedly impregnate current girlfriend, Anna Hanson. Their baby will be arriving in June.

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