DATE: 2-8 January, 2017 SURFACE: Outdoor Hard PRIZE MONEY: $505,730 FIELD SIZE: 28 DEFENDING CHAMPION: Stan Wawrinka Seeds: 1. Marin Cilic 2. Roberto Bautista Agut 3. Albert Ramos-Vinolas 4. Martin Klizan 5. Benoit Paire 6. Borna Coric 7. Mikhail Youhzny 8. Yen-Hsun Lu The Tournament: In its 21st year, and 11th year in Chennai. Stan Wawrinka has won the last 3 years running. About Chennai Formerly known as Madras, Chennai is located off the Bay of Bengal. It is a major cultural, economic and educational center, and is considered the safest city in India.