League of Legends is facing perhaps its biggest professional upset ever, as SKT are losing 2-1 in their quarterfinal series against Misfits.

Here's our guide to League of Legends Worlds 2017.

The Korean second seed, who are looking to pick up their third World Championship in a row, won their first game against the European rookies, who also entered the tournament as their region’s second seed, comfortably.

But an aggressive response from Misfits, lead by their support, Ignar, on Blitzcrank in game two and Leona in game three, claimed both of those games from the reigning champions and took Misfits to a 2-1 lead.