And he's looking forward to doing battle on the pitch on August 11.
"I couldn't believe it when we got Derby first game," said Primus. "It's amazing how the fixtures worked out.
"Hopefully, we can go up to Derby and do a professional job - Derby can go on a roll after that!
"We'll have a laugh together but first Pompey have to be positive and get a result and I am sure we can do that."