Goal tending or nothing ?

[mick]

A1 shoots from 18'.
B1 touches ball, and ball is deflected upward.
As ball begins downward track toward basket, B2 redirects ball away.

[bob jenkins]

Originally Posted by mick

A1 shoots from 18'.
B1 touches ball, and ball is deflected upward.
As ball begins downward track toward basket, B2 redirects ball away.

B1's touching does not end the try. So, it's goaltending (assuming the rest of the criteria are met).