Midfielder Zemanski, 24, was drafted in 2010 by Chivas USA and made 72 appearances for the Goats over three seasons. In return, Chivas USA received the rights to U.S. national team defender and 2010 World Cup participant Jonathan Bornstein, currently with Tigres in Mexico's Liga MX.
Nanchoff, also 24, was drafted by the Vancouver Whitecaps in 2011 and made 14 appearances in two seasons in British Colombia. The Timbers sent a 2015 fourth-round draft pick to the Whitecaps in exchange for his services.
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