bjergerking?

Disclaimer: This is all based on what I've seen from pro players streaming. I would assume no. I'm pretty sure most LCS pros' smurfs have very little in common with their main account, Bjergsen especially from what I've seen of his stream (he's impersonated other pros, though, Shiphtur for example). If an LCS pro makes a new smurf and lvls them to 30 and goes through placement games and all that, they're usually placed in Gold at least, and they don't stay there for long (usually in Diamond within a few days, I would assume). Basically, unless you're in Diamond 1-2 or higher, it's probably not a pro you're playing against.

His smurfs name is: I am BjergerKing

Edit: On a side note, my favorites of his have to be TEAM SALTY MID and Dyrone Saltstorm.