Arsene Wenger has been put on alert after Anderlecht midfielder Lucas Biglia made it clear he wants to move in January.
Arsenal boss Wenger has been watching the 26-year-old Argentine international and he is believed to be on their list of transfer targets.
Newcastle and Norwich have also looked at Biglia but Arsenal are keen to bring in a defensive midfielder and he could fit the bill.
Arsenal have also looked at West Ham's Mohamed Diame and have scouted Wigan midfielder James McCarthy.
Wenger has admitted he is keen to make January signings to strengthen his squad.