After walking away from running, former Oregon standout Luke Puskedra regains his passion and now may be headed for the Olympics

A little more than a year ago, Luke Puskedra was disillusioned with running after a disappointing marathon debut in New York. He walked away from the sport and considered retirement. Now, he owns the best U.S. team in the marathon in 2015 and is among the favorites in the upcoming Olympic marathon trials. What happened? My story for ESPN.com's Endurance Sports section: http://espn.go.com/sports/endurance/story/_/id/14319615/endurance-sports-olympic-trials-next-step-luke-puskedra-running-journey