Robert Lewandowski failed to find the net on his Barcelona debut after being selected to start for his side's first LaLiga game of the season against Rayo Vallecano.
The Polish striker, who signed from Bayern Munich over the summer and was only just registered in time to start the season, was selected ahead of Pierre-Emerick Aubameyang to lead Barca's frontline but could not break down Rayo during the goalless draw.
Barca also handed debuts to former Chelsea defender Andreas Christensen and Leeds forward Raphinha, but both were substituted after an hour at the Nou Camp.