Friedrich became a free agent on October 30, 2017, after the team outrighted him due to sustained injuries. On March 26, 2019, Friedrich signed with the New Britain Bees of the independent Atlantic League of Professional Baseball. On July 2, 2019, Friedrich's contract was purchased by the NC Dinos of the KBO League. He became a free agent following the season. On November 5, 2019, Friedrich re-signed with the New Britain Bees. However, following their move to the Futures Collegiate Baseball League, he was selected by the Somerset Patriots in the Bees dispersal draft. On February 25, 2020, Friedrich signed a minor league deal with the Chicago White Sox. He was released on June 18, 2020.