The Colts and first overall pick Andrew Luck are clashing over details that have nothing to do with guaranteed money in his first professional contract. Len Pasquarelli reports that the quarterback's camp is balking at language in the contract dealing with Luck's marketing endeavors. "One of the stumbling blocks in negotiations ... is the proposed inclusion of marketing language that Luck and his representatives, at least so far, regard as strident," Pasquarelli writes. "One source with knowledge of the talks even suggested that Luck would 'have to clear' marketing proposals with the club."