Mathieu: try to show that Barcelona is right to sign him

Since signing Mathieu Barcelona，the fans have beginning comment in succession , but Mathieu said he has enough confidence in himself , and determined to let the doubters shut up and prove that the Barcelona spends 20 million euros for him is right. Saturday 's friendly match with Nice , Mathieu is expected to debut , will be his first game in which informal appearances on behalf of the team . I believe he can prove to Barcelona to sign him is correct.