Chelsea U19s twice came from behind to draw 3-3 with Valencia in the UEFA Youth League on Tuesday.
Valencia took the lead on two occasions through Hugo Gonzalez Sotos and then Koba Koindredi.
Tino Anjorin equalised twice to get Chelsea back in the game before Armando Broja's goal just after the hour mark put Andy Myers's side ahead.
However, Koindredi struck again with six minutes left to seal a point in the first group stage game of the season.
Ajax defeated Lille 4-0 in the other game in Group H.