Key position eligibility changes for 2016

At one point this season, Twins slugger Miguel Sano may be eligible as an outfielder. But to start, he's a DH only. Brace Hemmelgarn/Minnesota Twins/Getty Images

This time a year ago, before he ever played a game in the major leagues, Minnesota Twins power prospect Miguel Sano was known as a third baseman, for that’s where he had performed in the minors and that’s where he was rightly eligible for all fantasy leagues. Then Sano actually played for the Twins, hit like a superstar for half a season and … he’s no longer a third baseman.