A viral post about Sam Darnold’s hair had Seahawks fans doing a double take, but there is no evidence the Seattle quarterback suddenly showed up with “dreads.”The X post from the account Shadow, @FeelLikeMafe, read: “Sam Darnold got dreads now?? We not playing fair this year,” alongside an image that appeared to show Darnold with cornrows, contradicting the premise of the post. The post quickly spread across Seahawks and NFL circles, and a scree…