The Florida Marlins and Detroit Tigers have agreed in principle on a trade that will send Miguel Cabrera and Dontrelle Willis to Detroit for key prospects, sources told ESPN's Peter Gammons. The Tigers would send outfielder Cameron Maybin, pitcher Andrew Miller, catcher Mike Rabelo and three other minor league pitchers to the Marlins. The deal is expected to be announced Tuesday night when the physicals and paperwork are completed. Miller was Detroit's top pick in the 2006 draft and went 5-5 in 13 starts after being called up last summer. Maybin was the Tigers' first pick in 2005 and shot through the farm system, hitting .143 in 24 major league games, Rabelo batted .256 in 51 games, and one of the other pitchers, 23-year-old Eulogio De La Cruz , appeared in six games for the Tigers, hitting 100 mph on the radar gun. Click here to read RealGM's Grading the Deal of this blockbuster trade