Angelo Mathews' Sri Lanka have been the dominant team in the five-nation event with four straight victories in the league, including a 12-run win over Pakistan in the tournament opener on February 25.
The charge was led by Sangakkara, the 36-year-old left-hander who has been in prime form during his team's current tour of Bangladesh which began with a bilateral series in January.
Sangakkara scored 75, 319 and 105 in two Test matches and 128 in the second one-day international to steer Sri Lanka to series wins in all three formats against the hosts.
The veteran has also played three match-winning innings in the Asia Cup, making 67 against Pakistan, 103 versus World Cup champions India and 76 against minnows Afghanistan.
He remains the leading scorer in the tournament with 248 runs despite falling cheaply for two in Thursday's last league match against Bangladesh.
"It is great to have Sangakkara in such good form, but the others will also need to step up and rally around him if we