A late goal by new signing Dani Olmo gave Barcelona a nervy 2-1 comeback victory at Rayo Vallecano on Tuesday, as the LaLiga leaders continued their perfect start to the season with a third consecutive win.

Barcelona were finally able to register new signing Dani Olmo with La Liga on Tuesday and he is expected to make his debut later on against Rayo Vallecano.

Spanish champions Barcelona slipped up in a 1-1 draw at Rayo Vallecano on Saturday in La Liga, continuing a worrying run of underwhelming performances.