The prop spent eight years at opponents Cornish Pirates and was their longest serving player before a serious neck injury kept him on the sidelines prior to new management arriving which saw him slip down the pecking order.
A move to Birmingham & Solihull followed last summer but the administration struck outfit couldn’t pay his wages which saw his contract made void allowing him to switch to Goldington Road in October.
Today’s 3pm kick-off in Cambourne will signal the start of a double header against the Pirates which the forward is convinced will play a crucial part in whether Blues progress out of Pool A.
“These two games are going to be massive,” he said. “We know that it’s going to be a tough match and that we have to play well to get a result.
“I have some good memories of playing down there, and I’ve got some good friends.
“But when I go on the pitch I’ll put that to one side, play the game for 80 minutes and then become friends again afterwards.”
Blues have the only unbeaten record in their group with two narrow victories over Plymouth Albion and Bristol, both of which Seal played in.
And the 30-year-old thinks they must be wary, yet focus on the strengths that have seen them win five games in a row, six including the 50-14 rout of the Barbarians last month.
“We need to concentrate on ourselves more than them,” he said. “That's no disrespect to them because they are going to be a massive threat.
“We’ve studied their DVD quite a bit.
I’m sure my team mates will ask me questions on how to play them but I think we’ll concentrate on what we can do rather than worry too much about them.
“We know as a set of forwards we’ve got a tough job on our hands especially because the Pirates’ pack has been in quite good form. We know that we have to match them physically.”