West Ham visit the Weston Homes.The U's will face West Ham on Tuesday afternoon as Joe Dunne takes a look at some of the players currently outside of his first team.
The game kicks off at 1.30pm and is open to spectators, with season ticket holders gaining free admission.
It will be O'Toole's first match action for a while, with the Republic of Ireland's former U21s international now recovered from his groin injury.
Hall will predominantly use his U21s squad, with the addition of John White, Matt Heath, John-Joe O'Toole and Carl Pentney.
Richard Hall's squad will take on the Hammers' development squad at the Weston Homes Community Stadium.
U's: Pentney, Olufemi, Heath, Hamilton, White, Sanderson, Gilbey, O'Toole, James-Lewis, Wright, Nwachuku, Phillips, Roast, Simmons, Lapslie, Bonne