Striker Kerry Baptiste and defender Corey Attaway are no longer training with the Sounders in Arizona, the team announced Monday.
Baptiste, a Trinidad and Tobago international, joined the Sounders last week, but was competing for a crowded position on the roster.
The Sounders have six potential strikers on the roster – Fredy Montero, Blaise Nkufo, Mike Fucito, O'Brian White, Roger Levesque and Nate Jaqua.
Baptiste, 29, is no longer under contract with Joe Public in Trinidad and Tobago, so he could land with another Major League Soccer club. He scored 69 goals in 92 appearances with Joe Public, including an impressive 35 in 2009.
He also has five goals in 39 games with the Trinidad and Tobago national team.
Attaway was the 29th overall pick in the supplemental draft.
He started 71 games in four years for UC Irvine and finished his senior season with five goals and three assists.