England has begun its 50-over campaign in Pakistan without Jos Buttler and Jofra Archer, with Harry Brook captaining the side in a three-team ODI series that also includes the hosts and Sri Lanka.
Buttler is unavailable due to injury, while Archer has been rested for the series, according to Sky Sports.
Their absence shapes England's squad for the opening stage of its Pakistan tour, with Brook leading the team into the competition.
Round-robin format sets up decisive group stage
The tournament follows a round-robin format in which England, Pakistan and Sri Lanka each play the other teams twice.
The two sides with the strongest results will qualify for the final, making the group-stage fixtures decisive in determining which teams compete for the title.
Pakistan made the opening statement by defeating Sri Lanka in the first fixture, according to the tournament update published by Sky Sports.
England now joins the two host-team and Sri Lankan sides in a format designed to determine the finalists through repeated head-to-head matches.
Sky Sports is providing live coverage of every match in the series, including score updates and video coverage.
Its live report tracks England's opening campaign and the results that will shape the route to the final.