After goals from Rhys Healey, Conor McGrandles and Alex Gilbey guided them to victory at Stadium MK - here's how the players rated.
9. David Kasumu - 7.5
Busy, broke up Portsmouth's midfield play with as mature head.
10. Joe Mason - 6.5
Did not make much of an impact, laying off to McGrandles for Dons' second aside.
11. Rhys Healey - 7.5
Marked his first start in months with a start with another goal. Seven goals in nine games for the striker.
12. Sam Nombe - 6.5 (sub)
Turned provider for Gilbey to make it 3-0, and made his presence felt.