Xavi and Alba back for Barca's PSG trip
The duo returned injured from international duty with Spain - Alba after the World Cup qualifying draw with Finland a week ago, and Xavi after helping the world champions to get a 1-0 win away to France.
They were left out of the leaders' squad for their 2-2 draw away to Celta Vigo in La Liga on Saturday.
Coach Tito Vilanova took charge of Sunday's training session as he steadily works his way back into the job after two months in New York receiving cancer treatment.
Vilanova returned to Barcelona last week and missed the Celta game but, all being well, is expected to travel to Paris with the team for Tuesday's first leg.