[MLS TRANSACTIONS] The Portland Timbers completed the signing of 19-year-old Jose Adolfo Valencia, the son of formerColombian great Adolfo “El Tren” Valencia,” as MLS’s first young Designated Player.  The Vancouver Whitecaps won the weighted lottery for U.S.international midfielder Lee Nguyen, the 25-year-old Vietnamese-American out of Dallas who has spent time in the Netherlands, Denmark and Vietnam. The ColumbusCrew signed Ohio State goalkeeper Matt Lampson, the third collegian to sign as a homegrown player with an MLS club since the end of the 2011 season. For all theMLS offseason player movement …

Not ready to subscribe? Sign up here for our free newsletter.

Already have an account? Sign in here.