Defenseman Matt Carle agreed to a four-year contract extension Wednesday with the San Jose Sharks, who locked up another key young player with a lengthy deal. Carle, who won the Hobey Baker award as the NCAA's top player in 2006, has been a regular on San Jose's blue line since signing a pro contract late in the 2005-06 season. He scored 42 points in 77 games last season, making the NHL's all-rookie team along with fellow Sharks defenseman Marc-Edouard Vlasic.