The St. Louis Blues added experience to their young defensive corps on Friday by signing veteran defenseman Darryl Sydor , a two-time Stanley Cup winner, to a one-year contract. Darryl Sydor is a true professional in our game," team president John Davidson said. "He's a proven winner who brings valuable leadership to our blue line and will be a positive mentor for our younger defensemen."Sydor has played for five NHL clubs during his 18 NHL seasons. He started 2008-09 with the Pittsburgh Penguins , but was traded to the Dallas Stars early in the season and finished with 3 goals, 12 assists and 18 penalty minutes in 73 games.The 37-year-old is a two-time All-Star and won the Stanley Cup with Dallas in 1999 and Tampa Bay in 2004. In 1,244 regular-season games, he has 98 goals and 401 assists for 409 points, along with 710 PIM.