Fourth Test preview: West Indies v India

With the series already won by India, the fourth Test in Port of Spain will be of more interest to other teams around the globe, as a draw will see a new side at the top of the ICC Test rankings.
Pakistan could go top of the rankings if this match is drawn, combined with Sri Lanka beating or drawing with Australia in the Colombo Test. The Aussies will thus be knocked off their perch.
The West Indies will try their very best to prevent a three-nil series defeat though, and will need their batsmen to start firing, despite it being the end of the series. They don't have a batsman in the top five run-getters in the series.
Interestingly, it was not spin that undid the Windies in the third Test, but rather the pace of Bhuvneshwar Kumar and Mohammad Shami, which they should be better suited to playing, but only Roston Chase has proven resilient in the past few weeks.
The hosts are missing the experience of Dinesh Ramdin, who was not picked for the series, as well as Chris Gayle and Dwayne Bravo, as the other elder statesmen like Marlon Samuels and Darren Bravo have not come to the party.
The Windies have a dubious record at the Queen's Park Oval, winning two and drawing two of the last 10 Tests. India last played here in 2002 and won, and will expect that to be the case again.
Key Players
India will keep looking to all-rounder Ravi Ashwin for match winning efforts, as he's the only person with two tons in the series, and has also taken 16 wickets, the most of all the bowlers in the series.
It's slim pickings for the Windies is this regard. Roston Chase is their highest run scorer in the series and the only one with a ton, while Miguel Cummins has the most wickets (9). Neither are household names yet.
Last Five Head-To-Head Results
2016 Third Test: India won by 237 runs
2016 Second Test: Drawn
2016 First Test: India won by an innings and 92 runs
2013 Second Test: India won by an innings and 126 runs
2013 First Test: India won by an innings and 51 runs
Squads
West Indies: Jason Holder (capt), Kraigg Brathwaite, Shai Hope, Darren Bravo, Marlon Samuels, Jermaine Blackwood, Roston Chase, Shane Dowrich (wk), Carlos Brathwaite, Devendra Bishoo, Shannon Gabriel, Leon Johnson, Miguel Cummins, Alzarri Joseph
India: Virat Kohli (capt), Ajinkya Rahane, Ravi Ashwin, Stuart Binny, Shikhar Dhawan, Ravindra Jadeja, Bhuvneshwar Kumar, Amit Mishra, Mohammed Shami, Cheteshwar Pujara, KL Rahul, Wriddhiman Saha, Ishant Sharma, Rohit Sharma, Sardul Thakur, Murali Vijay, Umesh Yadav
Details
18-22 August
Morning session: 10:00-12:00 (14:00-16:00GMT)
Afternoon session: 12:40-14:40 (16:40-18:40)
Evening session: 15:00-17:00 (19:00-21:00)
Umpires: Nigel Llong and Rod Tucker
Match Referee: Ranjan Madugalle