IOWA CITY, Iowa (AP) — The past had threatened to overshadow the future at this year’s U.S. Olympic Team Trials, with gold medal-winning wrestlers from each of the past four Olympic Games plotting comebacks. One of those former champions, Cael Sanderson, won’t make it to Iowa City. That could help open the door for Jake Herbert. The 27-year-old Herbert became the favorite to win the U.S. freestyle spot at 84 kilograms this weekend after Sanderson decided last week that his duties as a father and coach of NCAA champion Penn State were too pressing to leave behind. Herbert lost to Sanderson in the World Team Trials in 2011. He says Sanderson’s absence is little more than one less person to worry about.