Galen Rupp's a daunting quest: Medals in 10K and marathon

(Photo: Kirby Lee, USA TODAY Sports)RIO DE JANEIRO — Galen Rupp has a bold vision for this Olympic Games.

The American long distance runner, who claimed silver in the 10,000 meters in London in 2012 behind training partner Mo Farah, will attempt to medal in perhaps the two most grueling races at this year’s Olympics, the 10,000 and the marathon.

It’s an unreal ask of the human body, despite the fact that Rupp has largely avoided injuries in his career. The races are eight days apart. He begins his quest Saturday night in the 10,000-meter race, which begins at 9:27 p.m. local time.

The 30-year-old Oregon native, who finished fifth at last year’s world championships in the 10k, has not spoken to…