Polanco was already signed to an extension.
https://legacy.baseballprospectus.com/compensation/cots/national-league-central/pittsburgh-pirates/
Gregory Polanco lf
5 years/$35M (2017-21), plus 2022-23 option
5 years/$35M (2017-21), plus 2022-23 club option
signed extension with Pittsburgh 4/5/16
$3M signing bonus
17:$1M, 18:$3.5M, 19:$5.5M, 20:$8M, 21:$11M, 22:$12.5M club option ($3M buyout), 23:$13.5M club option ($1M buyout)
price of 2022-23 options may increase by $2M each with escalators based on performance