The Raptors haven't done particularly well in the playoffs (one series victory in 20 years), so we've never really had any true rivals. Vince Carter comes to mind, but even that ship has sailed. So, what we have is Paul Pierce, who hit some big shots and was very vocal about it in the first round last year when he was with the Brooklyn Nets.
We still have one more night of regular season basketball to determine the final seedings, but the Raptors are currently slated to play the Wizards in the first round.
In an extensive interview with ESPN's Jackie MacMullan, Pierce surveyed the East and assessed the Raptors specifically:
A few Wizards players said they heard that the Raptors want to play them instead of the Bucks, which is a bit surprising I guess.— Jorge Castillo (@jorgeccastillo) April 15, 2015