 Due to finish the season out-of-contract, speculation surrounded his season as to whether he would re-sign with the club.He ultimately re-signed with the club in August on a two-year deal, tying him to Melbourne until the end of the 2018 season.The round sixteen match against at TIO Stadium in a thirty-two point win saw McDonald record a career-high thirty-one disposals, ten marks, and six rebound-50s, which earned him the centre half-back position in "AFL Media's" team of the week.