Scouts from Newcastle, Arsenal, Liverpool, Southampton and Norwich watched 17-year-old Scotland youth defender Aaron Hickey play for Hearts against Rangers on Sunday.
Football Transfer Rumours - Oct-23-2019
Manchester City sent scouts to watch 19-year-old Italy midfielder Sandro Tonali play for Brescia on Tuesday.
Manchester United's interest in Mario Mandzukic, 30, could intensify after the Juventus and Croatia striker dropped his wage demands
Crystal Palace will rival Aston Villa in a bid to sign Colombia striker Alfredo Morelos, 23, from Rangers in January.