Blue jerseys on the backs of a teeming crowd along the Walajah Road on Thursday evening will finally not be out of context. Fans in Chennai have embraced every team that has set foot in the city and played at the iconic venue, turning up in tens of thousands even for sweltering afternoon matches here. But India are finally in town, with everything riding on their fixture.

For West Indies, in particular, this feels like a must-win contest. They could hardly have laid out a more emphatic marker than their 107 run win over Zimbabwe on Monday.  But, even allowing for that hefty NRR boost, a wounded India await as their final Super Eight fixture on Sunday. If that ends up being a straight knockout, then it’d be best to lay the killer blow here and now.

West Indies certainly have the form and the focus to do so. But, thrillingly, so do their opponents. In a tournament marked by reticence from a host of likely contenders, West Indies and South Africa have both been refreshingly route-one in their approach. Shimron Hetmyer’s 85 from 34 balls against Zimbabwe may have been the apogee of attacking batting in the tournament to date, but it was merely a continuation of the pedal-to-metal approach that enabled his team to out-muscle England by 13 sixes to six in their statement victory in Kolkata a fortnight ago.

South Africa, similarly, have not been backward in coming forward. India must have thought their last contest was in the bag when Jasprit Bumrah reprised his Barbados impact to reduce them to 20 for 3 after four overs at this same venue. They reckoned without a relentlessly aggressive middle order of Dewald Brevis, David Miller and Tristan Stubbs, who kept piling into the breach to produce a total of 187 for 7 that Marco Jansen soon proved to be more than enough to defend. A win on Thursday will almost certainly place South Africa in the semis, unless India lose all three games in the Super Eight.

More such bravery will be the requirement on Thursday. On a localised level, it’s thrilling to have such a high-stakes encounter at this stage of the competition. In reality, though, each of the tournament’s three likeliest winners would appear to have been crammed into the same under-sized pool. It’s sink-or-risk-being-sunk time at the Narendra Modi Stadium.

With 11 wickets at 12.18 – including eight in his last two outings, at this very venue, against New Zealand and India – Marco Jansen has the form and the method to make another statement impact for his team. Five of those wickets came in the powerplay – three against New Zealand, though they used his pace and bounce against him in between whiles, and two against India, who were never allowed to rally after his first-ball extraction of Tilak Varma. Every team craves a rangy left-arm seamer in this format, and Jansen’s combinations of angle, accuracy and steepling bounce mark him out as one of the very best.