Alvaro Morata wants to banish the memory of missing a penalty on his Chelsea bow when the striker returns to Wembley to face Tottenham Hotspur this weekend. "It is a big motivation for me, it is a bad place (Wembley) for me at the moment because I missed a penalty," said Morata in an exclusive interview with Sky Sports ahead of the game. "But I have the opportunity to take this feeling out of my body, my head and all the heads of Chelsea supporters. I am very motivated for this game, it is against Tottenham, a very big team." "It is not good, I missed a penalty which was important for the team, for the club, it is a trophy, all week it is in my head and it is not good," he said. "My feeling is I am new on this team, I am new in the Premier League, and it's just the beginning for me. But I could only think about this thing - the penalty - it's the mentality that is important. I said to my wife, 'this weekend I score a goal', because I need to change the mentality, I need to turn the situation, to tell all the supporters that I am here and I am not scared to miss a penalty or to play badly." "It is not the best beginning," he said. "If this weekend was the end of the Premier League, it is OK, but we need to play better and to know that here, all the teams can give everything. It must be impossible for us to give points to other teams at Stamford Bridge. Because here in the Premier League it is so difficult to win points at other stadiums, and Stamford Bridge must be very important for us to get the three points every weekend." "I want to make an explosion (at Chelsea)," he said. "I play well at Real Madrid and at Juventus, but I think I did not make the explosion that everyone expected of me. I need to be an important player for the team, for the Spanish national team. And I think I am at the better age and all of the best moments of my career are coming. I played good matches in the Champions League, but one a month. I need to play every weekend, score goals and play at the top level every weekend. And I work for this situation."