Onyewu arrived at Fulham's Craven Cottage complex on Wednesday for a physical Sky Sports reported on its Web site. The 6-foot-4 defender from Olney Md. has played for Standard Liege in Belgium since 2004.
"I would say that there's a strong possibility he's played his last game for Liege said his agent Will Sherling. "There's a number of teams who have expressed an interest and we are investigating those options."
Sherling said Onyewu is still exploring several clubs.
"There's not any one in particular Sherling said.
Onyewu did not travel with Liege on Tuesday when it left for a training camp in Portugal. Fulham spokeswoman Sarah Brookes declined comment. Eurosport.com said that if Onyewu moves to Fulham the transfer fee would be $1.96 million fee.
The 24-year-old has one goal in 17 international appearances. He was ejected at last year's World Cup for a foul that led to the go-ahead penalty kick in Ghana's 2-1 victory which eliminated the Americans in the first round.
On Tuesday the New England Revolution said Major League Soccer reached an agreement to send Dempsey to Fulham a deal that won't be finalized unless the forward obtains a British work permit. On Wednesday the U.S. Soccer Federation said Dempsey will not be attending the training camp scheduled to start Thursday in Carson Calif.
McBride and Bocanegra have been with Fulham since 2004.