To gain further match experience, Messi joined Barcelona C in addition to the Juveniles A, playing his first game for the third team on 29 November. He helped save them from the relegation zone of the Tercera División , scoring five goals in ten games, including a hat-trick in eight minutes during a Copa del Rey match while man-marked by Sevilla 's Sergio Ramos .   His progress was reflected in his first professional contract, signed on 4 February 2004, which lasted until 2012 and contained an initial buyout clause of €30 million. A month later, on 6 March, he made his debut for Barcelona B in the Segunda División B , and his buyout clause automatically increased to €80 million.   He played five games with the B team that season but did not score.  Physically he was weaker than his opponents, who were often much older and taller, and in training he worked on increasing his muscle mass and overall strength in order to be able to shake off defenders. Towards the end of the season, he returned to both youth teams, helping the Juveniles B win the league. He finished the campaign having scored for four of his five teams with a total of 36 goals in all official competitions.