MLB free agent rankings: Top five first basemen Here are the top five MLB first basemen set to hit the free-agent market this offseason. Original Source: https://sports.yahoo.com/mlb-free-agent-rankings-top-202156422.html Previous article: MLB free agent rankings: Top 10 starting pitchers Prev Next article: Shohei Ohtani heads to World Series for first time, achieving goal he had when signing with Dodgers Next