Manchester United are watching Celtic defender Josip Juranovic.
The Daily Mail says United manager Erik ten Hag wants to sign a new right-back this summer and Croatia international Juranovic is on the radar.
The 26-year-old has impressed in Scotland since arriving from Legia Warsaw last year.
Celtic would be prepared to listen to offers for Juranovic at a starting price of £15m.
Apart from United, Atletico Madrid are also keen where coach Diego Simeone remains concerned with his right-back options after the January sale of Kieran Trippier to Newcastle United.