KINGSTON, Jamaica (Sporting Alert) — Shelly Ann Fraser-Pryce sounded the strongest of warnings ahead of the Olympic Games in London with a stunning 10.70 to win the 100m at the Jamaica Championships on Friday night. The defending Olympic champion blasted home to win the race in a new personal best ahead of Veronica Campbell-Brown, who raced to the line in a seasonal best of 10.82, while Kerron...