Winger begins suspension.
Sanchez will begin his suspension for the sending off at Swindon Town last Friday, but boss Joe Dunne has options to replace the former Arsenal man.
The U's have Freddie Sears and Gavin Massey ready to come into the side, as they look to build on their last home performance, a commanding win over Gillingham.
Drey Wright is nearing a first team return, but is not yet ready to be considered for a place in the matchday squad.
U's: Walker, Cousins, Wilson, Olufemi, Okuonghae, Sesay, Eastman, Dickson, Eastmond, Gilbey, Bean, David Wright, Sanderson, Vose, Massey, Sears, Morrison, Ibehre