It was not the homecoming that Luke McGee was hoping for.
The goalkeeper impressed in his 45 appearances while on loan at Peterborough from Tottenham last season.
But a return to London Road with his current club yielded no return, as Pompey slipped to a 2-1 defeat.
Conor Chaplin’s goal proved no more than a consolation after Posh had netted twice earlier in the second half.
McGee said: “I’m very disappointed because I felt it was quite a tight contest overall.
“I’ve had to make a few saves and so has their keeper, they’ve hit the crossbar and then we’ve hit the post.
"The first goal was always going to be massive and I just think that we didn’t quite stamp our authority on the game."
“The first goal was always going to be massive and I just think that we didn’t quite stamp our authority on the game.
“I thought that Curtis Main was a decent presence up top and had one shot that hit the post – on another day it strikes the other side and goes in.
“We showed some character to get a goal back through Conor, but unfortunately couldn’t find another one.
“I had a good year at Peterborough last season and enjoyed my time there, so it’s always nice to come back.
“The fans gave me a really good reception, but I had to treat as just another game where we tried to take three points.
“So I’m disappointed we were unable to do that and hopefully we can put that right on Saturday.”
McGee has been a regular between the sticks since arriving at Fratton Park in the summer and believes he is now a better player.
The 22-year-old said: “Working with the goalkeeping coach Keelo (John Keeley) has improved several aspects of my game. I trust in him and the gaffer to get the best from me.”