Bayern Munich v Paris Saint Germain - Key Champions League Battles

Bayern Munich take on Paris Saint-Germain in the Champions League last 16, a heavyweight clash between clubs who faced off in the 2020 final. Here's a look at some of the key match-ups which could determine where the tie is won and lost ahead of Tuesday's first leg:

Christophe Galtier v Julian Nagelsmann

After a strong start domestically, PSG's form has dropped off considerably since the turn of the year and coach Galtier finds himself entering a critical stretch of the season without Kylian Mbappe.

The France star, the joint-leading scorer in this season's Champions League with seven goals, will miss the first leg with a thigh injury and there are concerns over Lionel Messi too after the Argentine hurt his hamstring during Wednesday's 2-1 loss to Marseille in the French Cup.

With Neymar yet to rediscover his best form since the World Cup either, Galtier must devise a plan that will allow a diminished PSG -- whose squad was also hit by a stomach bug at the weekend -- to avoid another European disappointment.

Bayern appeared to have turned the corner after going through what their coach Nagelsmann called a "results crisis" following three straight draws last month.

The 35-year-old Nagelsmann has also been hindered by injuries to key players but the club brought in cover in January and expectations remain as high as ever in Bavaria.

Gianluigi Donnarumma v Yann Sommer

The Italy goalkeeper made a costly error as PSG were dumped out by Real Madrid in the last 16 a year ago but is now entrenched as their first-choice goalkeeper.

PSG twice reached at least the semi-finals with Keylor Navas in goal before the arrival of Donnarumma, whose signing was intended to help the French champions win Europe's biggest club prize.

Bayer