Dani Olmo made a dream debut for Barcelona, scoring the last-minute winner to ensure the Catalan club can start the Spanish league with a perfect record.
Olmo scored in the 82nd minute with a low left-foot shot into the far corner after an assist from Lamine Yamal to give Barcelona a 2-1 win at Rayo Vallecano on Tuesday (Wednesday AEST), which saw them come from behind.