The last 16 of the Champions League gets underway on Tuesday with two potentially fascinating encounters.

Milan host Tottenham in the Rossoneri's first Champions League knockout game since the 2013-14 season, while two of the favourites in this year's competition, Paris Saint-Germain and Bayern Munich, face off in the French capital.

Neither Milan nor Spurs come into their first leg in the best form, with Stefano Pioli's side getting their first win in eight games on Friday against Torino, while their English opponents were thrashed 4-1 by Leicester City.

PSG are also faltering, having lost 3-1 at Monaco at the weekend, leading to fan protests and Presnel Kimpembe having to calm them down through a megaphone.

Bayern will hope to add to the problems of Christophe Galtier's men, who seem likely to be without Kylian Mbappe, but Julian Nagelsmann admitted his own players are "not in the flow" in spite of their 3-0 win against Bochum on Saturday.

Stats Perform has taken a look at some Opta numbers ahead of the first pair of Champions League knockout games.

Milan v Tottenham

This will be the fifth competitive meeting between Milan and Tottenham, with the Premier League side unbeaten across each of the previous four (W2 D2).

They last played each other in the 2010-11 campaign at the same stage of the Champions League. Spurs won 1-0 on aggregate, with Peter Crouch scoring the only goal of the tie.

Spurs boss Antonio Conte has won eight of his last nine games as a head coach against Milan (L1), between 2013 and 2021. Indeed, he has seen his side win and keep a clean sheet in each of his last three trips to face the Rossoneri away from home (2-0 in 2014, 2-0 in 2019 and 3-0 in 2021 – all in Serie A).

Conte will be looking to win consecutive away games in the Champions League for just the second time in his managerial career, having last done so in the 2012-13 campaign when he was at Juventus (1-0 v Shakhtar Donetsk and 3-0 v Celtic).

Olivier Giroud has been directly involved in six goals for Milan in the Champions League (four goals and two assists) – the last player with more in a single campaign in the competition for the club was Zlatan Ibrahimovic in the 2011-12 season (nine – five goals and four assists).

Ivan Perisic has three assists in five appearances for Spurs in the Champions League, already his joint-most for a club among the four he has played for in the competition: three in 10 games for Bayern, one in 20 for Inter and none in 11 for Borussia Dortmund.

The three players to have recovered possession most often in the middle third of the pitch in the Champions League this season all play for either Milan or Spurs: Rodrigo Bentancur (34), Ismael Bennacer (32) and Pierre-Emile Hojbjerg (31), though Bentancur will be missing after suffering a season-ending knee injury at the weekend.

Paris Saint-Germain v Bayern Munich

PSG have faced Bayern on 11 previous occasions, with all of them coming in the Champions League. The teams are separated by just one victory (six for PSG and five for Bayern), while they have scored the same number of goals (15 each).

Among teams who have faced Bayern on 10+ occasions in the Champions League, PSG are the team with the highest win percentage against them (55).

Bayern won all six of their group games this season, scoring 18 goals and only conceding twice. The only previous occasion in which they won their first seven matches of a Champions League campaign was in the 2019-20 campaign, when they had a 100 per cent record (11/11) in the competition.

PSG have only failed to score in one of their last 32 home games in the Champions League (averaging 2.6 goals per game), though the exception was in a 1-0 defeat against Bayern in the 2020-21 quarter-final second leg.

Joshua Kimmich has won 76 per cent of his matches for Bayern in the Champions League (50/66). Among all players to make 50+ appearances in the competition, he is the only player to have featured on the winning side in more than three quarters of his games.

Since the start of the 2017-18 season – his first at PSG – Mbappe has been directly involved in 57 goals in 50 appearances in the Champions League (34 goals and 23 assists). Indeed, he is the only player with both 20+ goals and 20+ assists during this period. He will be a big miss should he not recover from injury in time, though he did train on Monday.

In the last two Champions League campaigns, only Robert Lewandowski (21), Mbappe (20) and Mohamed Salah (18) have been directly involved in more goals than Leroy Sane (17 – 10 goals, seven assists).

Lionel Messi has generated more shots following a carry (moving five or more metres with the ball) than any other player in the Champions League this season (14 – six shots and eight chances created).