The 21-year-old was reportedly a target of both the Cottagers and Southend over the summer, but the Premier League club appear to have won the race for the youngster.
O´Donovan, an Ireland B international, will undergo a medical at the west London club when Sanchez and his squad return from Hong Kong before returning to his former side on a temporary basis.
© Copyright PA Sport 2007, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms