Australian David Warner; Steve Smith celebrates with Adam Zampa.
Sri Lanka started the tournament as rank outsiders and finished sixth of the nine teams, registering one of their three wins against the world's top-ranked one-day international side and hosts England.
A throw to the stumps deflected off the bat of a diving Ben Stokes as he tried to complete a second run and raced to the boundary, with Sri Lankan umpire Kumar Dharmasena awarding six.
Sarfaraz Ahmed's side needed to smash the world record for margin of victory in a one-day international but, after winning the toss at Lord's, they failed to muster enough runs to give them a chance.
Bangladesh must be all out for seven or lower if Pakistan are to deny New Zealand a place in the semi-finals alongside Australia, India and England.
The broadcaster said their decision would "ensure as wide an audience as possible is able to watch the game."
England have qualified for the semi-finals and will meet either India or Australia on Thursday July 11. The final is at Lord's on July 14.
Sourav Ganguly, affectionately known as Dada, is an Indian cricket commentator and former cricketer and captain of the Indian national team.
Shahbaz Nadeem took the final two wickets in straight balls as India thrashed South Africa by an innings and 202 runs in the third Test on Tuesday to complete a 3-0 series rout.
Andy Murray has been selected for Britain’s Davis Cup squad 24 hours after winning his first tournament since 2017. Former world number one Murray clinched his first ATP Tour title