If the build-up to the first game between Real Madrid and Tottenham focused on Harry Kane, then the second meeting on Wednesday night at Wembley is very much being seen in Spain as the Dele Alli test.
There is a concern that if Tottenham almost defeated Real at the Bernabeu without the England midfielder, they might be able to go one step further with him in the side.
'He is the big young English talent,' said Diario AS resident European football expert Julio Maldonado. 'He is intelligent, he scores goals and he has a great understanding with Kane and [Christian] Eriksen.