Georgios Giakoumakis currently has two clubs after his signature, Celtic and Werder Bremen, however, it is now being reported by Greek Journalist Giannis Chorianopoulos that talks have collapsed with the 2. Bundesliga club.
Giakoumakis talks with Werder (almost) collapsed. A new round of negotiations with Celtic has been scheduled for next hours!@CelticFC @werderbremen_en
#CelticFC #Celtic #Werder #WerderBremen— Giannis Chorianopoulos (@choria80) August 24, 2021

Giannis Chorianopoulos has revealed that Celtic will re-negotiate with the 26-year-old in the ‘coming hours’.
The Greek scored 26 goals in 30 games last season for VVV-Venlo, who play in the Edeveise. Our last update was from Anthony Joesph, who stated talks were ‘progressing well’ and that the selling club was keen to add a 15% sell-on fee to negotiations.
To add to the speculation, Thomas Henry has completed his move to Venezia. Celtic were closely linked to the Frenchman throughout the last couple of weeks, with it reported he wanted to play in the hoops. [FootballInsider]
As things stand, Celtic do not need another striker. Kyogo Furuhashi has excelled while playing up top, with Odsonne Edouard still on Celtic’s books. Albian Ajeti has also appeared on the bench since the start of the season.