D.C. United's pursuit of international assistance intensified this week with the arrival of a well-traveled Brazilian forward for an extended tryout and plans to look at a young, Denmark-based defender.

Welton Carlos Silva, 28, has begun workouts with the team in Washington and is likely to travel with the club to South Florida this weekend for the resumption of training camp following tomorrow night's Champions' Cup quarterfinal match against Olimpia of Honduras at RFK Stadium.

"We need to see more of him and how he plays, but technically he's very good," United technical director Dave Kasper said yesterday.

Silva has played in Brazil, Israel, France, Hungary and, most recently, Saudi Arabia. He had been in negotiations with a Dutch club before talks ended this month, Kasper said. If Silva signs, he would become the second Brazilian forward to join United this winter after the acquisition of Luciano Emilio last month.

Meantime, United has received permission from FC Copenhagen to look at Jamil Fearrington, a 20-year-old defender who has U.S. and Danish citizenship. Fearrington, who has played on Denmark's youth national teams, is scheduled to join United in Florida this weekend. United is in need of defensive depth after trading veteran Brandon Prideaux and failing to reach terms with rookie Jay Needham.

In other news, English midfielder Kasali Yinka Casal has been approved for a U.S. work visa and will rejoin United in the next few days from London. He will not be available to play against Olimpia tomorrow but is likely to be eligible for the first leg of the Champions' Cup semifinals in two weeks, if United advances.

Also, third-string goalkeeper Ryan McIntosh has been given permission to explore opportunities with U.S. second division clubs, a sign that United will offer rookie Shawn Crowe a developmental contract. McIntosh played only in reserve league matches last season.

-- Steven Goff