Scott Malone levelled for the Lions on 21 minutes, before George Saville put the home side in front just before the half-hour mark.
Pompey’s hopes of a second-half comeback were thwarted after Callum Johnson was shown a straight red card three minutes after the break.
![Some very good stops, although nervy moments at the end with a few mis-hit clearances.](https://www.thestar.co.uk/webimg/b25lY21zOjBhODlkYTQ0LWJkY2YtNDM4Ny05NGI4LTRmYTRmNmE3ZTk1NjpmYzMwYzI3Zi1iOThlLTQyMGUtYjU4ZC0zNTM4YTQyYWU0MjQ=.jpg?crop=3:2&trim=&width=595)
1. Alex Bass - 7
Some very good stops, although nervy moments at the end with a few mis-hit clearances.Photo: JPIMedia
![Debatable sending off soured a decent return to the side for the right-back.](https://www.thestar.co.uk/webimg/b25lY21zOmJjOTNmODViLTA3YTEtNDI0Yy04MDYxLTA4NDY2MTFmZTRmYzo0OWNkYmY5OC02NGNkLTRmYzktOTA3ZC1iNWYwYjIyNDBiYzI=.jpg?crop=3:2&trim=&width=595)
2. Callum Johnson - 6
Debatable sending off soured a decent return to the side for the right-back.Photo: JPIMedia
![Has started the season off superbly and producing another towering display.](https://www.thestar.co.uk/webimg/b25lY21zOjQ3ZjZjZjdjLTQ5YjMtNDhiZS1iYWJjLTY0ZGQ1YjBiODg0NzpjNjg5OTg1Zi1iOTdjLTQ5MjEtOTI4MC1jM2FkMjliNjMxZGM=.jpg?crop=3:2&trim=&width=595)
3. Sean Raggett - 8
Has started the season off superbly and producing another towering display.Photo: JPIMedia
![Strong alongside Raggett with the pair developing a good understanding.](https://www.thestar.co.uk/webimg/b25lY21zOjE4MTljZThkLTMzM2YtNDdjNS05YTAwLTdhYjcyNTIwMWQ3YzozNjJmMTE4Mi01MGZlLTQwNmYtODVlYy05MWI1NWE3NmQ2ZTI=.jpg?crop=3:2&trim=&width=595)
4. Clark Robertson - 7
Strong alongside Raggett with the pair developing a good understanding.Photo: JPIMedia