Why was Neves handball against Bayern not a penalty?

Bayern Munich players, coaching staff and fans at the Allianz Arena were in disbelief after they were denied a penalty for a handball by Joao Neves in their Champions League semi-final second leg against Paris St-Germain. Trailing the holders 1-0 on the night and 6-4 on aggregate, the German side's players surrounded referee Joao Pedro Silva Pinheiro at the half-hour mark when Vitinha rifled a clearance against his own team-mate Neves' arm inside the box. …