Most of the main Cabinet ministers are expected to retain their posts in Prime Minister Junichiro Koizumi's reshuffle Monday, coalition sources said Sunday.

The expected shakeup of the 17-member Cabinet will be the first since Koizumi took office in April 2001. Though the moves may be minor, Koizumi has reportedly broken with tradition by refusing recommendations to appease party factions.

However, the main focus seems to be on Financial Services Minister Hakuo Yanagisawa, who has openly opposed a move to inject public funds into banks despite the backing of the policy by Finance Minister Masajuro Shiokawa and other ministers.