No, they can still qualify if they lose but it would require Sentinels to win out (Beating C9 and Faze) and C9 would have to lose to one of faze and LG
SEN was already out after they lost to LG and EG
Those were the only 2 teams they had a chance against
If you think SEN can beat C9 then I gotta kindly ask you to turn down the COPIUM. Only way SEN beat C9 is if leaf and xeppaa decide to play with their feet