Torres left on bench as Schuerrle starts for Chelsea
Chelsea's Spanish striker Fernando Torres controls the ball during a training session at the Parc des Princes stadium in Paris on April 1, 2014 - by Franck Fife
With Samuel Eto'o sidelined due to a hamstring injury, Spain striker Torres had been expected to get the nod at the tip of the Premier League side's attack.
However, he was left on the bench at kick-off with German international winger Schuerrle and Belgium's Eden Hazard both starting, and both capable of playing through the middle.
There were no surprises elsewhere in the visitors' starting XI, Brazilian Ramires returning from a domestic suspension to partner compatriot David Luiz in central midfield with Nemanja Matic ineligible in Europe and Frank Lampard - who has made 99 Champions League appearances - only a substitute.
Petr Cech, captain John Terry and Lampard all played in the Chelsea side that won 3-0 against PSG in the French capital in the group stages back in 2004, in Mourinho's first spell as manager of the club.
There were no surprises in the PSG side as Christophe Jallet started at right-back in the absence of Dutch international Gregory Van der Wiel, who has a nagging knee problem.
Captain Thiago Silva lined up in central defence with a mask to protect the cheekbone he fractured in the Ligue 1 win at Lorient last month.
Zlatan Ibrahimovic has scored 10 goals in just seven games in this season's Champions League, and a club record 40 goals in all competitions.
Starting line-ups for the Champions League quarter-final first leg between Paris Saint-Germain and Chelsea at the Parc des Princes on Wednesday (1845 GMT kick-off):
Paris Saint-Germain (4-3-3)
Salvatore Sirigu; Christophe Jallet, Alex, Thiago Silva (capt), Maxwell; Marco Verratti, Thiago Motta, Blaise Matuidi; Edinson Cavani, Zlatan Ibrahimovic, Ezequiel Lavezzi
Coach: Laurent Blanc (FRA)
Petr Cech; Branislav Ivanovic, Gary Cahill, John Terry (capt), Cesar Azpilicueta; Ramires, David Luiz; Willian, Oscar, Eden Hazard; Andre Schuerrle
Coach: Jose Mourinho (POR)
Referee: Milorad Mazic (SRB)