Sarfaraz Ahmed must feel like he is always sitting on a hot stove. After a loss, he has people questioning his fitness. After a win the same people go 'unpredictable Pakistan, mercurial Pakistan, cornered tigers' and what have you. A week into the World Cup and the team has already experienced a roller coaster of sorts as they prepare to run into Sri Lanka.

It says much about Sri Lanka's position that a win against Afghanistanis looked at as an upset in several quarters. That game ended with a Lasith Malinga war cry after nailing a perfect yorker, and Malinga will know that creaking knees or not, he'll still have to be the leader of the attack, and a leader of sorts apart from that too.

New ODI captain Dimuth Karunaratne is still finding his feet as a 50-overs batsman. Angelo Mathews' form has deserted him. Dinesh Chandimal is cooling his heels at home, and Niroshan Dickwella, seen as part of Sri Lanka's next-gen batting is somewhat perplexingly in Belgaum, trying to prove a point by scoring runs for Sri Lanka A.

Sri Lanka can draw some solace from the fact that Pakistan are also in a somewhat similar space with one close win and one heavy defeat, except their win was against favourites England. And unlike Sri Lanka, Pakistan's batting has turned a corner - the off-day against West Indies notwithstanding - and brings with it hope that tall totals can be put up regularly, like they did against England in the lead-up to the World Cup, to allow their sometimes erratic bowlers enough leeway.

The return to form of Mohammad Amir and Shadab Khan spells out hope, as does Wahab Riaz's promise of breathing fire once again.

But will these protagonists get a chance to exhibit their skills? The forecast on Thursday is dire. There's 90% chance of rain, and those planning to arrive in Bristol can take time to tick off essentials like windcheaters and raincoats.

Angelo Mathews seemingly can't buy a run. In two games, he's lasted all of 11 balls and has made two ducks. In the first game, he was roughed up by the pace of Matt Henry and Lockie Ferguson, before falling to a gentle Colin de Grandhomme away-swinger. Against Afghanistan, he was done in by the lack of turn from Mohammad Nabi as an indecisive push resulted in a catch to the slips. He doesn't bowl and is no more than a 'safe fielder', so pressure will be mounting on him with every failure.

Mohammad Amir is expected to be blockbuster, even if not in the Shahid Afridi league. After the 'will he or won't he' merry-go-round around his selection, he was finally included in the World Cup squad. In his first outing, he did himself no harm by picking three wickets in a shellacking. Against England, his cutter proved difficult to negotiate, the scalp of Jos Buttler turning the game around decisively. Under possibly overcast skies, Amir has the stage to bring out that famous old weapon that made the world groove to his tune: swing.

Pakistan have hinted at continuity, while Sri Lanka are likely to bring in Jeevan Mendis in place of Suranga Lakmal if it's likely to be a full game. Avishka Fernando and Mendis could play in place of Lahiru Thirimanne and Lakmal if it's a truncated fixture.