Pompey were beaten by Wigan in their final Fratton fixture of the League One campagn.
But the 2-1 loss counted for little after the title had already been safely secured earlier in the week.
Luke Chambers and Josh Magennis both struck for the visitors, but John Mousinho's men had chances of their own.
Sean Raggett and Marlon Pack both went close before Kusini Yengi grabbed a late consolation for the Blues.