Timbers sign defender Kerrea Gilbert

The Portland Timbers have signed English defender Kerrea Gilbert from the English club Arsenal.

The Timbers, who join Major League Soccer as an expansion team next season, also acquired a fourth-round pick from the Houston Dynamo in the 2014 SuperDraft in exchange for defender Jordan Graye.

Gilbert, 23, has played for Arsenal for five seasons after developing in the English Premier League club's youth system. He was loaned to several English clubs over the course of his career with the team.

Graye was acquired by the Timbers in last month's expansion draft from D.C. United.