He signed this with a paint pen.
![CHICAGO WHITE SOX MICHAEL KOPECH AUTOGRAPH NIKE SOUTHSIDE #34 JERSEY JSA AI81934](https://i.ebayimg.com/images/g/u2MAAOSwOWNkUFL9/s-l1200.jpg)
CHICAGO WHITE SOX MICHAEL KOPECH SIGNED JERSEY SOUTHSIDE AUTHENTIC JSA COA AUTO
![CHICAGO WHITE SOX MICHAEL KOPECH AUTOGRAPH NIKE SOUTHSIDE #34 JERSEY JSA AI81934](https://images.footballfanatics.com/boston-red-sox/2014-panini-prizm-draft-class-number-31-michael-kopech-signed-card-psa-auto-10-red-sox_ss2_p-13797098+u-23fnfrviigv3oo99lf1s+v-124c01814a4144568397c2eb1051741d.jpg?_hv=2&w=340)
Michael Kopech Memorabilia, Autographed Michael Kopech
![CHICAGO WHITE SOX MICHAEL KOPECH AUTOGRAPH NIKE SOUTHSIDE #34 JERSEY JSA AI81934](https://fanatics.frgimages.com/chicago-white-sox/michael-kopech-chicago-white-sox-framed-15-x-17-player-collage-with-a-piece-of-game-used-ball_pi4782000_ff_4782414-c879e98ace77899eedbd_full.jpg?_hv=2&w=600)
Official Michael Kopech Chicago White Sox Jersey, Michael Kopech
![CHICAGO WHITE SOX MICHAEL KOPECH AUTOGRAPH NIKE SOUTHSIDE #34 JERSEY JSA AI81934](https://images.footballfanatics.com/chicago-white-sox/2019-panini-chronicles-phoenix-holo-michael-kopech-rc-pop-1-psa-10-b3578967-541_ss2_p-14507060+u-uj88ud6z9wz4qli22v9x+v-83047af518dd468ea061d70e1885ca1c.jpg?_hv=2&w=340)
Michael Kopech Memorabilia, Autographed Michael Kopech
![CHICAGO WHITE SOX MICHAEL KOPECH AUTOGRAPH NIKE SOUTHSIDE #34 JERSEY JSA AI81934](https://images.footballfanatics.com/chicago-white-sox/2017-bowman-draft-chrome-refractor-number-bdc34-michael-kopech-rc-psa-10-b3617790-756_ss2_p-14545646+u-194rjyau56hfid2u6rng+v-2dcc520e4ad244729798bbc2efd74043.jpg?_hv=2&w=340)
Michael Kopech Memorabilia, Autographed Michael Kopech
![CHICAGO WHITE SOX MICHAEL KOPECH AUTOGRAPH NIKE SOUTHSIDE #34 JERSEY JSA AI81934](https://images.footballfanatics.com/chicago-white-sox/brendan-rodgers-2019-topps-rookie-card-number-us299_ss2_p-11614236+u-5ewo04iof4tbu3f26gtd+v-ce3260228f3a47ed8b92d439505b530a.jpg?_hv=2&w=340)
Michael Kopech Memorabilia, Autographed Michael Kopech
![CHICAGO WHITE SOX MICHAEL KOPECH AUTOGRAPH NIKE SOUTHSIDE #34 JERSEY JSA AI81934](https://images.footballfanatics.com/chicago-white-sox/michael-kopech-2019-topps-chrome-rookie-card-number-17_ss2_p-11609521+u-qgsbxb1cn5v9ktmcx4iw+v-863eae76ae3d424992c0b53a2484f723.jpg?_hv=2&w=340)
Michael Kopech Memorabilia, Autographed Michael Kopech
![CHICAGO WHITE SOX MICHAEL KOPECH AUTOGRAPH NIKE SOUTHSIDE #34 JERSEY JSA AI81934](https://www.whitesoxapparelstore.com/images/Youth_Michael_Kopech_Chicago_White_Sox_Replica_White_Cooperstown_Collection_Jersey-300-7932.jpg)
Michael Kopech Jersey Michael Kopech Chicago White Sox Jerseys
![CHICAGO WHITE SOX MICHAEL KOPECH AUTOGRAPH NIKE SOUTHSIDE #34 JERSEY JSA AI81934](https://images.footballfanatics.com/chicago-white-sox/michael-kopech-rookie-card-2014-bowman-number-dp29-ags-10-gem-mt_ss2_p-14344208+u-h2wh0hdc8yx68pwuma32+v-3399b8265123479bbe89d2b747bd5ddc.jpg?_hv=2&w=340)
Michael Kopech Memorabilia, Autographed Michael Kopech