It has to do with Sana saying in task that now they will play for Asim. Sid hates Asim and Sana should stop supporting Asim. Its having a bad effect on their relationship
This is true that she has to stop with the whole Asim thing but the only reason she said she would play for him was because from her interaction with Vikas (in the promo) she got the vibe that he wasn’t going to play for Sid, but maybe PaHira instead so that’s why she said the Asim thing. But then again that’s just going off the last nights precap it could be very edited