Inter and Sassuolo fought out a goalless draw in their respective first Serie A fixture of the new year.
A mixed day for Paris Saint-Germain saw Neymar lead a dominant defeat of Guingamp as Marco Verratti suffered a first-half injury.
After a 1-0 loss away to West Ham on Saturday, Arsenal head coach Unai Emery conceded the defeat was a blow to their top-four hopes.
The draw for the round of 32 in the Europa League was made on Monday, throwing up some mouthwatering ties.
Prolific striker Josef Martinez has signed a new five-year deal with Atlanta United after being named MLS MVP last year.
Levante's appeal against Barcelona fielding Chumi in the Copa del Rey was rejected by the RFEF and Ernesto Valverde has defended his club.
Roma strung together their second win in a row as they saw off Parma 2-0 to keep pace with top five sides and maintain their charge for a Champions League spot.
PSG tied their record Ligue 1 winning margin, leaving German boss Thomas Tuchel stunned post-match in Paris.
Luka Modric, who was linked with Inter at the start of the season, is contracted to Real Madrid until 2020 and is eyeing an extension.
Giuseppe Marotta discussed the future of Mauro Icardi and reported Inter target Diego Godin prior to Saturday's 0-0 draw with Sassuolo.
Kylian Mbappe was asked about a possible move to Real Madrid following Paris Saint-Germain's 9-0 humiliation of Guingamp on Saturday.
Inter head coach Luciano Spalletti conceded his team "ran the risk of losing" after struggling to assert dominance over Sassuolo.