The Hornets arrive at the national stadium 13th in the table and without a win in six outings.
Looking ahead to this evening’s game under the famous arch, Gracia said: “It’s my first time (at Wembley). I have seen it on the TV but I’m looking forward to it. The most important thing though is to enjoy the game, to have a good performance and to get a good result.
“I know it’s difficult because Tottenham are a very good team with high quality who are very well organised.
“They have many good players and I’m sure they will play with their best players because in this moment of the season they don’t need to think about other competitions.