The Dodgers continue to be linked with Japanese pitching sensation Masahiro Tanaka and, according to general manager Ned Colletti, continue to pursue the 24-game winner. But their biggest area of need doesn't involve pitching, it involves infield depth.Justin Sellers, who barely played for them last season and is a career .199 hitter, is listed as the backup third baseman on the team's official web site.Colletti said Friday he continues to talk to Michael Young's agent about bringing the seven-time All-Star back to the Dodgers in a utility role.