Cowboys guard Zack Martin leaves preseason game against Bengals with knee injury Unknown 01:21 The Cowboys lost Zack Martin to a knee injury during their second preseason game. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsNick Wright: If Lakers want to win without LeBron, AD needs to step up I FIRST THINGS FIRSTChris Broussard: Suns looked dominant against a ‘small’ Warriors team I FIRST THINGS FIRSTMichael Jordan vs. LeBron James: The key stats you need to know in the GOAT debateNick Wright reveals his NFL Tiers heading into Week 13 of the season I FIRST THINGS FIRSTTroy Aikman rips Rams, super teams: 'I’ve never seen it work in the NFL'Alabama vs. Georgia odds, prediction, betting trends for SEC championship