PSG skipper Thiago Silva has been handed a two-match suspension following an altercation with the referee during last weekend's tempestuous 1-1 match against Valenciennes, while sporting director Leonardo still has a case to answer.
Ten-man Paris Saint-Germain had Brazilian Alex to thank for a late equaliser as they came from behind to draw 1-1, after compatriot Thiago Silva had been sent off. Earlier, Lyon's 3-0 win kept them in third place.
Paris Saint-Germain manager Carlo Ancelotti will be expecting a response from his side when they resume the hunt for the Ligue 1 title this weekend after their "worst match of the season".
Following a 2-2 draw in France, Javier Pastore fired Paris Saint-Germain into the lead in Spain, but a sizzling Pedro strike proved enough to earn Barcelona a 1-1 draw that sent them through on away goals.
Thiago Silva believes playing without Javier Mascherano and Carles Puyol would be a bigger blow to Barcelona than being unable to field Lionel Messi, but has insisted the Catalans are the best side on the planet.
FIFA.com previews this week's UEFA Champions League quarter-final second legs, with big guns from Spain and Germany in pole position to advance after first-leg gains.
Men's Olympic Football Tournament
Men's Olympic Football Tournament
