Ryan reportedly made the shocking claim as his divorce from Reese Witherspoon turns ugly.

After filing for divorce last November, and agreeing on a temporary custody arrangement which sees their two children Ava, 7, and Deacon, 3, live full-time with Reese, the exes are now at heads after Ryan asked a Los Angeles court to grant him joint custody with "equal allocated" visiting rights.

Insiders say Ryan, 32, has become increasingly unhappy over the limited time he gets to spend with Ava and Deacon, and feels Reese has the big share of the children's time. The move has angered 31-year-old Reese, who's told her friends she's prepared to fight to keep her children.

Ryan also claims Reese's hectic work schedule and "obsessive" commitment to her career mean she's unable to give their children enough of her time — a claim Reese denies.