A neighborhood group called "Protect Our Parks" sued, saying building the soccer fields is a theft of public land.
The park district board is meeting Wednesday and could vote to drop the plan.
Mayor Daley sounded off about the issue Tuesday.
"Parks are for people. You need soccer. You need all these things. We have enough medals up there. We have beautiful, beautiful recreation facilities up there. Recreation just adjacent to it. So soccer's big thing, younger people are playing soccer as compared to baseball or even touch football," said Mayor Daley.
Attorneys for both sides could take the issue to court as early as Thursday.