Big picture
By the time New Zealand walk out under the Khettarama lights on Wednesday, it will have been eight days since their last competitive fixture, but in the face of their disastrous outing with the bat against England, it's Sri Lanka that might be feeling rather undercooked, and are in danger of being eliminated from a World Cup they are co-hosting.
Make no qualms about it, Sri Lanka enter this contest seeking a massive course correction. Despite a strong start to the tournament with the bat, including a dominant chase over Australia and a dismantling of Oman, their monumental failure in their opening Super Eight fixture has once more disturbed the ghosts of collapses past.
Clarity will be the key word coming into this game, with Sri Lanka's batters caught in several minds as to how to approach a tacky surface last time out. Some, like Kusal and Kamindu Mendis, were dismissed trying to find singles - something batting coach Vikram Rathour said might not have been optimal on a sticky surface, where even such "safe" stroke play can elicit errors.
Others failed to execute while trying to show intent, instead erring on execution and timing, while those like Kamil Mishara hung around doing not much at all, before making the wrong choice nevertheless in the end.
The game will have served up more questions than answers, and New Zealand will no doubt be itching to press on those pressure points.
New Zealand of course are coming into this game as the in-form batting unit this tournament, having played all their games on the flat, batter-friendly surfaces in Chennai and Ahmedabad. In Sri Lanka, though, they will need to come out with a more measured approach, particularly against a Sri Lankan attack that will no doubt look to exploit the spin-friendly home conditions.
New Zealand also enter with the better head-to-head record, with a 16-9 win-loss record against Sri Lanka; even on Sri Lankan soil it's 5-3 in favour of the visitors. Recent history is not much different, with two Sri Lankan wins bookending a trio of defeats.
But all that means little in the context of a major tournament, particularly in a game which is as close to a must-win as possible for both sides. For Sri Lanka a defeat means a knockout; New Zealand, meanwhile, have slightly more wiggle room - particularly if England defeat Pakistan on Monday night - though they will then need other results to go their way.
Recent form
Sri Lanka: LLWWW (last five completed matches, most recent first)
New Zealand: WLWWL
In the spotlight
Of the spinners playing in this tournament, only Adam Zampa and Adil Rashid have a better record against Sri Lanka in men's T20Is than Mitchell Santner. Across his 11 games against them, he has gone wicketless just twice, grabbing 14 wickets at an economy rate of 6.38 - well below his career economy of 7.24. This however will be Santner's first time playing at Sri Lanka's most spin-friendly limited overs venue, and he will be backing himself to boost those numbers.
A look at where the game between New Zealand and Sri Lanka could be decided
Dunith Wellalage has seven wickets across this tournament, only behind Maheesh Theekshana (8) for Sri Lanka. Against England he was asked to bowl in the powerplay and came through with figures of 16 for 1 in that period, before finishing up with innings best figures of 3 for 26. With the action moving to the Khettarama, conditions should suit him even more. Sri Lanka will also be relying on him with the bat as well, with him twice being promoted up the order to no.5 already.
Team news
Sri Lanka will have been distraught with their batting performance against England, but it's unlikely they will make any drastic changes. Kamil Mishara, who came in for Kusal Perera last time out, is likely to get another outing.
Sri Lanka (probable): 1 Pathum Nissanka, 2 Kamil Mishara, 3 Kusal Mendis, 4 Pavan Rathnayake, 5 Dasun Shanaka, 6 Kamindu Mendis, 7 Dunith Wellalage, 8 Dushan Hemantha, 9 Dushmantha Chameera, 10 Maheesh Theekshana, 11 Dilshan Madushanka
New Zealand have a fully fit 15 thanks to their extra couple of days off after the Pakistan game washout. Jacob Duffy was set to make way last time out for the returning Lockie Ferguson before rain played spoiler.
New Zealand (probable): 1 Tim Seifert (wk), 2 Finn Allen, 3 Rachin Ravindra, 4 Glenn Phillips, 5 Mark Chapman, 6 Daryl Mitchell, 7 Mitchell Santner (capt), 8 Jimmy Neesham, 9 Matt Henry, 10 Ish Sodhi 11 Lockie Ferguson
Pitch and conditions
It's going to be a fresh wicket at the Khettarama, though the expectation is that it will still definitely be on the drier side. Expect spin to play a fairly prominent role. The weather forecast meanwhile is promising with it expected to be hot and humid - and crucially dry - throughout the day.
Stats and trivia
Across their four completed games this tournament New Zealand have been striking at 10.37 runs per over, the best of any side; Sri Lanka are fifth at 8.92.
New Zealand also average the most runs per wicket, 50.64, with West Indies a distant second at 38.79.
New Zealand however rank bottom for wickets taken, with just 14 over four games; Sri Lanka have taken 30 across five matches, while India top the list with 41.
Quotes
"I guess it is what it is. I mean you obviously want to play every game, and Pakistan are in the same boat. So yeah, I guess we'll be watching the game tonight Pakistan - England."
Mitchell Santner will be keeping an eye on the Tuesday's action, after rain has left them with little margin for error"It was a challenge bowling during the powerplay and the key was for me to deny the boundaries. I had to be clever with my lengths and when I did that the batters had to take a few chances. I relished the challenge." Dunith Wellalage on his role with the new ball
