He wants to give himself a bit of time to refresh his batteries.
Saqlain's two-year contract with the Three Lions had expired earlier this year.
Australia will kickstart their World Cup title race on June 1 against Afghanistan.
Kuldeep had broken down after conceding 27 runs in an over to Moeen Ali.
The five-match ODI series commences on Wednesday, May 8, and according to latest reports Moeen Ali has been ruled out of the game due to a rib injury.
DC's next match is against RCB at the Kotla.
RCB play another crucial clash against Delhi Capitals at Feroz Shah Kotla and will be without the all-rounder this time.
RCB currently have three wins in ten games and need to win all their remaining fixtures to stay alive.
"It's not ideal."
RCB registered their third win of the season.