Yankees OF Harrison Bader (foot) to start rehab assignment

Outfielder Harrison Bader is coming closer to making his Yankees debut.

Acquired by New York in a trade-deadline deal that sent pitcher Jordan Montgomery to the St. Louis Cardinals, Bader hasn't played since June because of plantar fasciitis. But manager Aaron Boone said Bader will join Double-A Somerset on Sunday to begin his rehab assignment.

Boone said Bader will need at least a week of preparation before he can join