Since joining Chelsea from Arsenal last year, Giroud has struggled to maintain first team stats under manager Maurizio Sarri.
However, his services are required by Barcelona who are looking for a striker to provide support for their first choice Luis Suarez. He has been identified by the Catalan club as a top target this January transfer window.
32 year old Giroud has netted only 10 times for Chelsea and came from the bench in their 2-1 victory over Newcastle in the Premier League on Saturday.