Fratton Park test for McGreal's men.U's: Walker, Bransgrove, Vincent-Young, Brindley, Wynter, Eastman, Prosser, Kinsella, Lapslie, Loft, Slater, Wright, Sembie-Ferris, Guthrie, Szmodics, Porter, Dickenson, Johnstone, Bonne
There's no Owen Garvan yet in the squad despite his 65 minutes in the U23s on Monday. Otherwise, the U's are in good shape.
The home side are yet to pick up their first three points this season - with two draws and a defeat thus far - but the South Coast side were strong at home last season and this will be a decent test of the U's mettle.
Only late goals at the Weston Homes Community Stadium and Kenilworth Road stopped the U's going to Fratton Park in top spot in League Two, but they know a tough test awaits on Saturday.
Colchester United go to Portsmouth on Saturday, looking to consolidate their good start to the new season.