The OP said and I qoute: "One of the players fell and then threw up a shot..."
The OP post did NOT say the one of the players, who did not have control of the ball, fell to the floor and then gained control of the ball and then threw the ball up at the basket.
It would be logical to assume from the wording of the OP that the player that fell to the floor had control of the ball prior to falling to the floor and maintained control of the ball during the entire play.
MTD, Sr.
P.S.: My apologies to NevadaRef.
P.P.S.: Camron, I think that you and I have taken or read enough NFHS exams that we are to take the question at face value which would lead to my assumption that the player had control of the ball prior to falling to the court and maintained control during the entire play. That's my story and I am sticking with it,
, until MutantDucky clarifies the play.
P.P.P.S. Grunewar, did you get my check yet.