Real Madrid are the only Champions League team that haven't made changes to their squad Champions League PSG let go of four players

After the busy winter market, Real Madrid stand as the only team qualified for the knockout stages of the Champions League to have not made any changes to their squad.

Zinedine Zidane's men, champion of the last two editions of the European tournament, will face Paris Saint-Germain, a team who has been quite busy during this past transfer window signing former Madrid player Lass Diarra, and letting go of Remy Descamps, Moussa Diaby, Alec Georgen and Lucas Moura.

Barcelona now have the services of Colombian Yerry Mina, Jose Arnaiz and David Costas, and have sold or loaned Gerard Deulofeu, Javier Mascherano, Rafinha and Arda Turan.

Chelsea, the Catalans' next rival in the competition, have seen a multitude of comings and goings; Ross Barkley, Olivier Giroud and Emerson Palmieri, Jake Clarke-Salter, Michy Batshuayi, Kenedy and Charly Musonda.

The other Spanish team in the competition, Sevilla, have acquired Brazilian Guillermo Guilherme Arana, Roque Mesa and Sandro Ramirez while letting go of Michael Krohn-Dehli, Borja Lasso and Walter Montoya.

Defender Miguel Layun, who has been the most recent purchase for the Andalusian team will not be able to participate having competed in the group stages with Porto.

Manchester United's signing of Alexis Sanchez will be a major challenge for Sevilla in the knockout round of the competition.

The English side, who look to be much stronger with the striker, no longer have the services of Henrikh Mkhitaryan or James Wilson.

Moreover, Pep Guardiola's Manchester City, another main contender for the elite title, have acquired French defender Aymeric Laporte and the Ukrainian Oleksandr Zinchenko, after letting go of Jacob Davenport, Eliaquim Mangala and Charlie Oliver.

Lastly, Bayern Munich will be happy to have their star goalkeeper Manuel Neuer return, after being out for several months with a broken foot, in addition to strikers Sandro Wagner and Kwasi Okyere Wriedt.