SAN DIEGO >> Their names are spoken so often in the same breath, it's strange to see Corey Seager and Julio Urias having such different Septembers.The Dodgers' two top prospects began the season as teammates in Double-A. Seager was promoted quickly to Triple-A Oklahoma City, then to Los Angeles on Thursday, and has applied his sweet left-handed stroke to major league pitching with preternatural ease.