Two weeks before the start of the new season the Vaessen Pioniers have signed two new pitchers. Jonatan Isenia and Jonah van Bemmelen are joining the Hoofdklasse club from Hoofddorp. Isenia pitched for the Dutch national team during the World Baseball Classic in 2013. He is a former Minor Leaguer with the Baltimore Orioles organization. Van Bemmelen is an American pitcher with a Dutch passport. He studied at Arcadia University and played in the Middle Atlantic Conference. He also pitched in the independent PECOS League.