All the UEFA Champions League round of 16 teams' January transfer activity.
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In accordance with Article 45 of the UEFA Champions League regulations, a club may register a maximum of three new eligible players for the remaining matches in the current competition. The deadline is midnight CET today, with new squad lists expected to be confirmed on Tuesday.
A full rundown of the rules, including a key change to previous seasons, is available here.
In: Lisandro Magallán (Boca Juniors), Lassina Traoré (Ajax Cape Town), Bruno Varela (Benfica, loan)
Out: Kaj Sierhuis (Groningen, loan), Max Wöber (Sevilla), Frenkie de Jong (Barcelona, to be completed in the summer)
In: Álvaro Morata (Chelsea, loan), Nehuén Pérez (Argentinos Júniors, return from loan)
Out: Gelson Martins (Monaco, loan), Jonny Castro (Wolves)
In: Jeison Murillo (Valencia, loan), Jean-Clair Todibo (Toulouse), Kevin-Prince Boateng (Sassuolo, loan), Frenkie de Jong (Ajax, to be completed in the summer), Emerson (Atlético Mineiro, from 1 July)
Out: Munir El Haddadi (Sevilla), Denis Suárez (Arsenal, loan)
In: Alphonso Davies (Vancouver Whitecaps, deal completed last summer), Benjamin Pavard (Stuttgart, from 1 July)
Out: Sandro Wagner (Tianjin Teda)
In: Leonardo Balerdi (Boca Juniors)
Out: Sebastian Rode (Eintracht Frankfurt, loan), Christian Pulišić (Chelsea, remains at Dortmund on loan), Alexander Isak (Willem II, loan), Dzenis Burnic (Dresden, loan), Shinji Kagawa (Beşiktaş, loan), Jeremy Toljan (Celtic, loan)
In: Martín Cáceres (Lazio, loan)
Out: Gonzalo Higuaín (Chelsea, loan after return from AC Milan), Stefano Sturaro (Genoa, loan), Medhi Benatia (al-Duhail)
Out: Dominic Solanke (Bournemouth), Nathaniel Clyne (Bournemouth, loan), Lazar Marković (Fulham)
In: Boubacar Fofana (Gazélec Ajaccio, from 1 July)
Out: Brahim Díaz (Real Madrid), Rabbi Matondo (Schalke)
Out: Marouane Fellaini (Shandong Luneng)
In: Leandro Paredes (Zenit)
Out: Timothy Weah (Celtic, loan), Jesé Rodríguez (Betis, loan), Yacine Adli (Bordeaux)
In: Fernando Andrade (Santa Clara), Pepe (Beşiktaş), Wilson Manafá (Portimonense), Mamadou N'Diaye (Braga, loan)
Out: Ewerton (Urawa Red Diamonds, loan), Riechedly Bazoer (Utrecht, end of loan), Chidozie Awaziem (Rizespor, loan), Sérgio Oliveira (PAOK, loan)
In: Brahim Díaz (Manchester City)
Out: Kiko Casilla (Leeds)
In: Rabbi Matondo (Manchester City), Jeffrey Bruma (Wolfsburg, loan)
Out: Naldo (Monaco), Johannes Geis (Köln), Abdul Rahman Baba (Chelsea, loan ended), Franco di Santo (Rayo Vallecano)
Out: Mousa Dembélé (Guangzhou R&F), George-Kévin N’Koudou (Monaco, loan)
*This list is not exhaustive; not all deals involving youth and reserve team players are included.