Champions League: PSG beat Real Sociedad 2-0, Lazio stun 10-man Bayern Munich

Paris St Germain beat visitors Real Sociedad 2-0 thanks to second-half goals from Kylian Mbappe and Bradley Barcola in a Champions League round of 16 first-leg match on Wednesday. Meanwhile, Lazio stunned 10-man Bayern Munich 1-0 as Ciro Immobile converted a 69th-minute penalty.

PSG struggled in the first half as the Group D leaders were arguably the better side, before Mbappe fired home a volley after he pounced onto Marquinhos' corner 13 minutes into the second half. PSG then took over the match when Barcola, 12 minutes later, extended their lead as he nudged the ball through the legs of Real Sociedad goalkeeper Alex Remiro.

PSG were lucky to go into the break with the match scoreless as Real Sociedad's captain Mikel Merino unleashed a thunderous strike that exploded off the crossbar just before halftime.

Mbappe, who missed his club's previous match due to an ankle injury, took advantage of Real Sociedad being temporarily down to 10 men after defender Hamari Traore was on the sidelines receiving medical treatment.

His strike into the the top corner sparked wild celebrations among the Parc des Princes crowd and the Frenchman almost extended PSG's lead a little later but his thunderous effort was tipped away by Remiro. Barcola then put on a fine individual show as he burst through from the halfway line to net a tidy finish, handing the Basque club a tough task to fight back from two goals down in the return leg in Spain on March 5.

Elsewhere, Immobile converted his spot-kick after Bayern defender Dayot Upamecano's clumsy challenge on Gustav Isaksen for which the France international was sent off with a straight red card.

Disciplined Lazio stifled the German side's attacks and Bayern were toothless throughout, failing to get a single effort on target in the match.

The Bavarians, favorites going into the game, were desperate to bounce back from Saturday's 3-0 Bundesliga loss to leaders Bayer Leverkusen which left them five points off the top.

They will return to Munich with more pressure piling on coach Thomas Tuchel and his team after their second straight defeat. They have failed to score in their last two games.

(With input from Reuters)