Real Madrid held by Al-Hilal after Man City win Club World Cup opener
Federico Valverde had a stoppage-time penalty saved as Real were forced to settle for a point in the Group H match in Miami having earlier taken the lead.
It was a disappointing outcome for the large contingent of fans of the Spanish side in the impressive crowd of 62,415 at the Hard Rock Stadium.
"The first half wasn't as good as the second one. In the second half we had better chances, better control. For sure we have the principles to start building something but we could have won," Alonso told broadcaster DAZN.