Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Sergio Ramos is not the only Bernabeu star on Manchester United’s hit-list as they prepare a robust response to Real Madrid’s bid to sign David de Gea. Real are expected to make a first formal offer for De Gea this week following months of speculation over his return to Spain, four years after moving to Old Trafford from Atletico Madrid. And United are determined to make it as difficult as possible for the Spanish giants to get their man by mounting what club insiders have described as ‘an aggressive counter'. It will begin with demands for a transfer fee in excess of £25million and has already extended to interest in Ramos.Manchester United are keen on bringing Sergio Ramos to Old TraffordReal Madrid are desperate to complete the signing of David de GeaUnited are planning an 'aggressive counter' to stop the Spanish giantsCristiano Ronaldo, Luka Modric and Gareth Bale could come up in the talksTransfer news: CLICK HERE for all the latest 
 Question:There are no guarantees that United will get their way, but it is a sign of the determination within the club to make life as difficult for _ as possible.

Real Madrid