Sports power couple: Eatons gearing up for Rio Olympics

Ashton Eaton crouched in the dirt and concentrated on conquering his latest rival — weeds overwhelming his backyard.

The Olympic decathlon champion and world-record holder dominated those pesky intruders, with his wife posting his handiwork on social media.

Ashton hopes to defend his Olympic decathlon title at the Rio de Janeiro Games for the U.S., while Brianne, who competes for Canada, figures to be a favorite in the heptathlon.

The Eatons are big supporters of Team World Vision, which raises money through running events to benefit children in Africa.

Because when we both are able to go somewhere and show up and show that it's a family supporting it, it's even stronger.

Take Brianne, who had a long talk with Marra after the 2012 London Games when she didn't medal.

Ashton's drive has long been legendary, but kicked up a notch after taking silver at the 2011 worlds in South Korea.

[...] he's won two world outdoor titles, an Olympic crown and broken the world record twice, the most recent time last summer at worlds in Beijing when he finished with 9,045 points.

Ashton would take center stage Aug. 17-18, with a chance to become the first decathlete to win back-to-back Olympic titles since British star Daley Thompson in 1980 and '84.