updated 06/06/2010 AT 11:00 AM ET
•originally published 06/05/2010 AT 12:00 PM ET
Off on a trip to Shanghai for a visit with her brother Axel, a Swedish marketing representative, Elin Nordegren is expected back in Orlando, Fla., by June 18 to celebrate her and Tiger Woods’s daughter Sam’s third birthday.
“Elin took Sam and Charlie to China but needs to be back in time for Tiger to also be involved with the celebration of Sam’s birthday,” a friend tells PEOPLE.
A source close to the ongoing legal discussions in divorce proceedings between Nordegren and Woods says that a $700-million settlement is not the issue. Causing problems in the negotiations is child custody. They are fighting over the kids.
“Elin now wants full custody of the children because she would prefer they have limited time with Tiger,” a source tells PEOPLE. “Tiger will be generous about a settlement, and in the end will not balk about paying in the neighborhood of $700 million. But he wants joint custody.”