Tigers general manager Dave Dombrowski made the announcement on Wednesday.
This is the first time that the Tigers had confirmed plans to move Cabrera across the diamond. The slugger told a Venezuelan newspaper that he had informed the team that he wanted to change positions after the Fielder trade.
Dombrowski: "We're looking at Nick Castellanos as our third baseman. Miguel Cabrera is going to first base for us." So that's now set.
— Jason Beck (@beckjason) December 4, 2013
The decision will open up the third base spot for top prospect Nick Castellanos this spring. The Tigers will likely add a veteran option that can come off the bench as insurance.
Cabrera has been a moster at the plate in recent seasons. In 148 games for the Tigers last season Cabrera finished with a .348/.442/.636 line with 44 home runs, and 137 RBI. In 2012 he became the first player to hit for the Triple Crown since 1967.