The Portuguese defender missed last Saturday's 3-2 defeat by Brentford with a hamstring problem.
Sam Sodje stepped into the back four and will keep his place if Rocha is ruled out again.
Caretaker boss Guy Whittingham has no other injury concerns and could stick with the side narrowly beaten by the promotion-chasing Bees.
However, with Pompey's relegation having been confirmed in midweek, Whittingham may opt to give some of the club's youngsters such as Jack Maloney and Nick Awford a chance.
Midfielder Liam Walker pressed his claims for a return to the starting line-up with a goal in a midweek friendly against Icelandic side IBV.