0 of 5

Scott Iskowitz/Associated Press

The New York Yankees' rotation was upgraded, albeit at a great cost, last week when they signed coveted Japanese pitcher Masahiro Tanaka.

Tanaka is expected to slot into the second starter's position behind veteran workhorse C.C. Sabathia.

The tail end of the Yankees' rotation is less certain. They will likely seek to fill the fifth and final starter's spot internally since their offseason spending spree has already cost nearly $500 million, and they have more pressing free-agent needs.

A small crowd of names will be considered for the job as fifth starter. Here are the Yankees' top five options.