Las Vegas Raiders head coach Antonio Pierce may have added some fuel to the fire when it comes to the Davante Adams trade rumors. Social media users noticed that Pierce liked an Instagram post from Sports Illustrated that said “Davante Adams is likely to be gone if the Raiders get what they want in a trade.” It’s likely Pierce was trolling the media by liking the Instagram post, but it would not be a surprise to see the Raiders trade Adams to a Super Bowl contender. The All-Pro wide receiver is currently dealing with a hamstring injury and didn’t play in Sunday’s game against the Cleveland Bro…