He certainly was a Centre at the OHL level and drafted as one. In the NHL he has likely been used more as a winger perhaps.
I'd suggest that if the Leafs would acquire him it would be to play as a winger, and not a centre and why I suggested that he might fit nicely beside Matthews and Marner as a complementary piece to complete that line with someone willing to do the heavy lifting.
I'd play him in the top 6 and not bottom 6 and then there is no need to play C if that were the case.
I really like the bite to his game as in his hitting and tenacity in which he battles for pucks, something our Leafs don't have a lot of.