The Norwich loanee scored in each half – with Marlon Pack – grabbing the other as the Blues ran out 3-0 winners to extend their lead at the top to seven points.
It was driven by much-improved second-half display, with Kamara the shining star – and here are our Pompey player ratings...
13. Colby Bishop - 6
(Replaced Kusini Yengi on 72 mins) Good to see him back far earlier than expected from his ankle injury. Photo: Bryn Lennon
4 / 5