Goalkeeper Pat Onstad, who made 57 appearances for Canada from 1988 to 2010, has retired to become a coach with D.C. United of Major League Soccer.
Onstad, who will be 43 in January, this year became the oldest player in MLS history.
Internationally, Onstad post 21 shutouts for Canada -- a national record -- and helped the Canadians to the 2000 CONCACAF Gold Cup championship and to the 2007 Gold Cup semifinals.
The Vancouver native debuted in MLS in 2003 with the San Jose Earthquakes and was chosen goalkeeper of the year while guiding San Jose to its second MLS Cup championship.
Onstad was goalkeeper of the year again in 2005. The club, renamed the Dynamo, relocated to Houston in 2006 and promptly won back-to-back championships.
Dynamo had the fewest goals allowed in the league from 2007 to '09, thanks in large part to Onstad.
"Pat has been an instrumental part of our club over the last five seasons," Dynamo president Chris Canetti said.