 Complete the following phrase:  Initially part of the first-team plans for Juventus prior to the start of the 201314 Serie A season, Marrone was sold to newly promoted Serie A side Sassuolo on 2 September 2013 on a co-ownership deal. The deal served as an exchange for 50 of the contract of Sassuolos Domenico Berardi, who joined Juventus on a co-ownership deal but remained at Sassuolo on loan for the 