Image Courtesy: Epicenter
Let’s just preface this by saying that Kanishka 'Sam' "BuLba" Sosale and Sumail "SumaiL" Hassan are close friends. This is most likely just some banter between two friends. The two players have even taken vacations together, right after TI9.
However, that didn’t stop SumaiL from making fun of BuLba’s behaviour in pub games. After an intense teamfight in a high-ranked game, SumaiL decided to mimic BuLba on mic stating “I swear to god ‘Pink’, if you are ever again on my team, I will make sure you don't get on any team. I swear to god.”
This is likely in reference to a game that BuLba played earlier this week where he flamed fellow NA player Husky.
The Dota 2 community had called out BuLba’s actions after this incident.