KANSAS CITY, Mo. — Zach Allen stared at his shoelaces and searched for words that just wouldn’t come. The hulking Broncos defensive lineman slowly tied one knot and then the other. Then, there was only reality to confront. “This is the worst loss I’ve ever had in my life,” the sixth-year pro told The Denver Post, his voice barely reaching above a whisper in the stunned silence of the Denver locker room. Take Our Poll (function(d,c,j){if(!d.getElementById(j)){var pd=d.createElement(c),s;pd.id=j;pd.src='https://www.denverpost.com/wp-content/plugins/polldaddy/js/polldaddy-shortcode.js';s=d.getElementsByTagName(c)[0];s.parentNode.insertBefore(pd,s);} else if(typeof jQuery !=='undefined')jQuery(d.body).trigger('pd-script-load');}(document,'script','pd-polldaddy-loader')); He sat on a tiny wooden stool, one of which accompanies each locker in the cramped visiting accommodations at Arrowhead Stadium.