The veteran defender believes his side deserved to beat Austria but insists they must improve as a team if they are to book their spot in the last 16 of the Euros
Ricardo Carvalho conceded Portugal are "a little bit more worried" about their Euro 2016 prospects after a second consecutive Group F draw against Austria.
Fernando Santos' men were dominant for long periods against Austria but were left to rue Cristiano Ronaldo missing a second-half penalty in the 0-0 draw at Parc des Princes.
Portugal are now two points behind leaders Hungary after also sharing the spoils in a 1-1 stalemate with Iceland in their opening game.