Andrew Lucks retirement from the NFL shocks Ryan Clark, Sports Center

Ryan Clark says Indianapolis Colts QB Andrew Luck s decision to retire is the most shocked I ve been on any Clark details the battle Luck has been facing with injuries and how his teammates in the locker room should react to his decision. Subscribe to ESPN+ Get the ESPN App: Subscribe to ESPN on YouTube: Subscribe to ESPN FC on YouTube: Subscribe to NBA on ESPN on YouTube: Watch ESPN on YouTube TV: Exclusive interviews with Rachel Nichols Stephen A. Smith on ESPN ESPN on Social Media: Follow on Twitter: Like on Facebook: Follow on Instagram: Visit ESPN on YouTube to get uptotheminute sports news coverage, scores, highlights and commentary for NFL, NHL, MLB, NBA, College Football, NCAA Basketball, soccer and more. More on