Adam Schefter says Andrew Luck did not know the news of his retirement had broken while he was on the sideline for the Indianapolis Colts' preseason game vs. the Chicago Bears. Schefter says no one knows if Luck will stay retired, but for now, the game has worn him down. He also says that he expects the Colts to go after a veteran QB to replace Luck. ✔ Subscribe to ESPN+ https://plus.espn.com/ ✔ Get the ESPN App: http://www.espn.com/espn/apps/espn ✔ Subscribe to ESPN on YouTube: http://es.pn/SUBSCRIBEtoYOUTUBE ✔ Subscribe to ESPN FC on YouTube: http://bit.ly/SUBSCRIBEtoESPNFC ✔ Subscribe to NBA on ESPN on YouTube: http://bit.ly/SUBSCRIBEtoNBAonESPN ✔ Watch ESPN on YouTube TV: http://es.pn/YouTubeTV Exclusive interviews with Rachel Nichols https://urlzs.com/jNURe Stephen A. Smith on ESPN https://urlzs.com/W19Tz ESPN on Social Media: ► Follow on Twitter: http://www.twitter.com/espn ► Like on Facebook: http://www.facebook.com/espn ► Follow on Instagram: www.instagram.com/f/espn Visit ESPN on YouTube to get up-to-the-minute sports news coverage, scores, highlights and commentary for NFL, NHL, MLB, NBA, College Football, NCAA Basketball, soccer and more. More on ESPN.com: http://www.espn.com