Jadon Sancho marked his return to Borussia Dortmund with an assist in a 3-0 victory over Darmstadt.The 23-year-old marked his loan move to the club until the end of the season from Manchester United by setting up Marco Reus, with Julian Brandt and Youssoufa Moukoko also on target in Dortmund's first win in all competitions since beating AC Milan in the Champions League at the end of November.Exequiel Palacios fired in a dramatic 94th-minute winner to lift undefeated Bundesliga leaders Bayer Leverkusen four points clear of Bayern Munich with a 1-0 victory over Augsburg.Eintracht Frankfurt moved up to sixth position with an important 1-0 victory over RB Leipzig, Ansgar Knauff's seventh-minute strike proving the difference.Freiburg played out a goalless draw with Union Berlin, while both Mainz's meeting with Wolfsburg and Heidenheim's trip to Koln ended in 1-1 stalemates.Hakan Calhanoglu and Lautaro Martinez both scored twice as Inter Milan won 5-1 at Monza to extend their lead at the top of Serie A.Marcus Thuram was also on target as Simone Inzaghi's side moved five points clear of Juventus, who host Sassuolo on Tuesday night.Amir Rrahmani's dramatic last-gasp winner lifted Napoli to a 2-1 victory at the Maradona Stadium and condemned Serie A bottom-dwellers Salernitana to another disappointing defeat.Antonio Candreva got the visitors off to a hopeful start when he struck in a stunning long-range effort just before the half-hour mark, but it was cancelled out when Matteo Politano converted a spot kick in added time before the break.The contest looked destined for a draw until the visitors failed to clear a free-kick and Rrahmani pounced, handing his side the win in the sixth minute of stoppage time.Elsewhere, Genoa and Tor