(Undated)  --  With some team facilities set to re-open soon in areas easing restrictions, NBA commissioner Adam Silver and NBPA executive director Michele Roberts will hold an all-players call Friday. The call will serve as an open forum to address concerns.  Meanwhile Mavericks owner Mark Cuban isn't in a rush to open up.  Cuban said on the '77 minutes in heaven' podcast there is no point to opening up while there is a lack of testing to go around.