Paris Saint-Germain will seek retribution for last season's final loss when they face Bayern Munich in the Champions League last eight this week. Despite the arrival of Mauricio Pochettino as coach, the French giants seem to have regressed since then.

The news of Robert Lewandowski's absence for Wednesday's quarter-final first leg at the Allianz Arena has elicited some joy in Paris, particularly with Neymar regaining fitness after his latest layoff.

Getting to the final of Europe's top club competition was a major accomplishment, but losing in the quarter-finals now would be a major setback for PSG and Pochettino, given their Ligue 1 deficit.

Last month, the former Tottenham Hotspur coach claimed that he would need time to develop himself at the Parc des Princes and would not be able to make the changes he wanted until the pre-season.

Pochettino needs Neymar to regain his best form and Kylian Mbappe to deliver. Mbappe has been the highlight of PSG's best results under Pochettino, from his hat-trick in Barcelona to a brace in a 4-2 victory in Lyon.

Under Tuchel and Pochettino, Mbappe has sometimes pretended to deceive, and his results have been disappointing. They've lost ten games so far this season. With seven games remaining, they are three points behind the Ligue 1 leaders after a 1-0 home defeat to title rivals Lille on Saturday. Bayern Munich, who is still without Lewandowski, could also be without winger Serge Gnabry.

Bayern coach Hansi Flick said on Tuesday that Serge Gnabry has a sore throat and is out. Bayern will face PSG without two main forwards due to Gnabry's illness. Marc Roca, a midfielder who sustained an injury in training on Sunday, will also miss the first leg at the Allianz Arena.

PSG is without defender Alessandro Florenzi and midfielder Marco Verratti, who were both diagnosed with Covid-19 and are reportedly quarantined. Flick declined to confirm rumors that Bayern Munich center-back Jerome Boateng would leave the club at the end of the season after failing to obtain a contract extension.

Following their suspensions for Saturday's 1-0 victory over RB Leipzig, Boateng and left-back Alphonso Davies are both available to tackle PSG.

TIME FOR CHELSEA TO MAKE HARD CALLS: On Saturday, Thomas Tuchel's calm start as Chelsea manager came to an end when West Bromwich Albion becomes the first visiting team to score five goals at Stamford Bridge in ten years.

Tuchel's 14-match unbeaten streak after replacing the sacked Frank Lampard in January came to an end with a stunning 5-2 loss thanks to Thiago Silva's early red card. The German coach must now demonstrate his willingness to cope with pressure in his first season with the west London club.

Due to coronavirus restrictions on travel between Portugal and England, a fast response is required in Wednesday's Champions League quarter-final first leg against Porto in Seville.

Despite their heroics in knocking out Juventus in the last 16, anything less in Chelsea's first Champions League semi-final since 2014 would be considered a massive disappointment. Some cracks contributed to Lampard's departure have been patched over by an outstanding string of results, but others remain unsolved.

Werner's poor form is a significant factor. The German international has only scored once in his last 18 games for club and country, and his already shaky faith was further harmed when his spectacular miss helped North Macedonia win a World Cup qualifier last week.

Tuchel must make some major decisions if he is to improve on his performance last season when he led Paris Saint-Germain to the Champions League final. Olivier Giroud could be pulled in from the cold by a boss in need for the second time in his Chelsea career.

The difference in the first leg of Chelsea's last-16 tie against Atletico Madrid was Giroud's overhead kick, but the Frenchman has not featured in the Premier League or Champions League since February. Tuchel's influence has been felt most at the back, where he had a streak of seven clean sheets before Saturday's collapse.

Chelsea has become much more difficult to break down thanks to the use of a back three and Antonio Rudiger's return after being frozen out by Lampard for much of the first half of the season.

Mason Mount and N'Golo Kante will also be back, as their value was illustrated when they were rested from the start last weekend. Tuchel has a lot of options, but he'll be judged quickly on whether he makes the right decisions.