Cabrera will receive an invitation to spring training, according to Biertempfel.
Additionally, If he makes the big-league team, he'll be guaranteed $1.15 million with another $850,000 in performance bonuses, league sources told ESPN's Jeff Passan.
Polanco isn't expected to return to action until around June as he recovers from labrum surgery.
The 34-year-old Cabrera appeared in 78 games for the Cleveland Indians in 2018, hitting .280/.335/.420 with 17 doubles and 39 RBIs.
The veteran outfielder is a one-time All-Star who owns a career .286 average with 137 home runs.