Red Sox teammates Mookie Betts and J.D. Martinez test how well they know each other | ESPN

Mookie Betts and J.D. Martinez get quizzed on the other’s habits and explain what the other player has contributed to the Red Sox’s success through the first half of the MLB season. ✔ 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 ESPN on Social Media: ► Follow on Twitter:   / espn   ► Like on Facebook:   / espn   ► Follow on Instagram:   / 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