It was a Maddy steal, attempted pass to Nat who tried to tip it forward (which would have been a great play in itself) to HH but had it just short and ended up with MSU who tried a pass inside that was stolen by Soni.
It isbpossible Maddy got a hand on the pass inside but i don'tbthink so.
Edit: after watching frame by frame i think it is likely she batted fhe pass down but i am still not 100% on that