United new boy Bebe has insisted: I will be brilliant! The striker, who Sir Alex Ferguson shocked the world to sign in a £7.4m swoop this summer, is ready to step into Cristiano Ronaldo's shoes and become an Old Trafford legend. Bebe hit back at critics, who were quick to label him a flop after his move from Vitoria de Guimaraes, claiming he will prove to be another Fergie gem. The 20-year-old made his first appearance for United's reserves on Thursday but told fans he will soon live up to his price tag. After a couple more games I will be better, he said. I have to be fitter because it's a different type of football in England. I am going to be a brilliant player for Manchester United. Bebe has made a meteoric rise from his humble upbringing to the bright lights of Old Trafford. "Having represented Portugal in the homeless World Cup, he spent his entire career at third division Estrela Amadora before his move to Guimaraes this summer. "Ferguson admitted he had never seen him play before signing him, but sanctioned the move on the recommendation of former assistant Carlos Queiroz. Bebe was left out of United's first three reserve games of the season, but was included in the 25-man Champions League squad despite mistaken reports he had been omitted. He added: I don't know when I will be ready for the first team. I need to work hard and a lot. I don't know when I will be ready for the first team. I need to work hard and a lot depends on the boss whether he calls me into the team or not. Sir Alex has told me he is very happy with me and he wants me to train more and get into the first team. Bebe admitted United's interest which came just weeks after he had moved to Guimaraes from Estrela da Amadora and come as a surprise even to him, but said United's Portuguese and Brazilian contingent had already helped him settle in to life in England. I am very happy to be at Old Trafford but the big thing is to work hard so I can play, said Bebe. I have settled in very well with the team but I need to work hard to move up to the first team. I can play on both sides, on the left and the right. It doesn't make any difference which side. It was a big surprise for me and for everyone when Manchester United signed me. It helps a lot having other players that speak Portuguese Rafael, Fabio, Nani and Anderson are all my friends. Nani and Anderson help me the most. They help me because they speak Portuguese and they have come from abroad and they can help me to help the team.