With the January market just around the corner, dozens of clubs are already moving to retouch their squads and, here, the names of Oskar Pietuszewski and Luís Guilherme mark the day at FC Porto and Sporting, respectively. Outside, Endrick (who will be a reinforcement for a Portuguese coach), Andrej Kostic, Niclas Füllkrug and Divock Origi are also highlights in the transfer market in the last few hours. LIVE: everything that's happening in the transfer market