Sydney FC welcomed defender Perry's decision, after several days of consideration, to play for the Sky Blues in their W-League semi-final against Brisbane Roar in Brisbane on Saturday afternoon.
It means she misses playing for the dominant NSW Breakers in the interstate Twenty20 final against Western Fury in Perth on the same day.
"It was a truly difficult decision to make and certainly something that took a huge amount of thought and consideration," said Perry, who has juggled the schedule all season to play in both teams.
"It's such a privilege for me to be a member of both Sydney FC and the NSW Breakers and I am truly grateful to the support given to me by both Cricket NSW and Sydney FC.
"The opportunity to play for the team (Sydney FC) in this weekend's semi-final of the W-League is something that I am very much looking forward to."
Sydney FC coach Alen Stajcic said Perry's decision and presence would lift the team.
"It's fantastic news that Ellyse will be playing for Sydney FC in Saturday's semi final," Stajcic said.
"I know it's a tough situation for her as both teams face important end of season games but her presence for us is certainly a boost as we take on our arch-rivals Brisbane Roar.
"Ellyse has worked very hard this season to fulfil all of her training and playing commitments for Sydney FC and Cricket NSW and she was in a tough situation."