Jankovic makes first-round exit

Latvian teenager Anastasija Sevastova claimed easily the biggest win of her career as she knocked out top seed Jelena Jankovic in the first round of the Monterrey Open.

The 19-year-old, ranked 72nd in the world, never let Serbian Jankovic get comfortable and came from a break behind in the deciding set to win 5-7 6-4 6-4.