Proceeds will benefit the survivors and families of those who died aboard the ferry Sewol.
The signing ram from 11:45 a.m. until 12:15 p.m. in lot 6 of the Dodger Stadium parking lot.
On Friday, Ryu pledged to make a $100,000 donation to the cause via his HJ 99 foundation to a charity helping those affected by the ferry disaster.
CNS contributed to this report.
