https://mkepanthers.com/news/2018/12/13/baseball-ghelfi-selected-in-mlbs-rule-5-draft.aspx
https://www.mlbtraderumors.com/2018/11/minor-mlb-transactions-112518.html
https://www.fishstripes.com/2018/11/20/18105602/marlins-derek-dietrich-dfa-40-man-roster-top-prospects-monte-harrison-brian-schales-trade
https://marlinmaniac.com/2018/11/02/miami-marlins-jeff-kinley/
https://lacrossetribune.com/sports/local/minor-league-baseball-la-crosse-central-s-mitch-ghelfi-lighting/article_629ba383-b38c-58e6-b156-68ebe9ec2a9f.html
http://oaklandclubhouse.com/gus-varland-opening-eyes-in-his-debut-season-with-the-oakland-athletics/