Celtic and Rangers are likely to dip back into the transfer market before the window slams shut on at midnight on August 31 and a list of free agents could be exploited by either Brendan Rodgers or Michael Beale.
Both managers will be keen to bolster their respective squads with quality additions ahead of competing in Europe, and some big name players have recently become available which offers the two Glasgow giants the perfect opportunity to sign top stars for nothing.
The biggest Bosman transfer of this summer is, of course, Lionel Messi’s move to Inter Miami following the expiry of his contract at PSG. Sergio Busquets has also reunited with his former Barcelona team-mate in the MLS.
Here, GlasgowWorld has compiled a list of the best free agents who have not yet been snapped up:
1. Shkodran Mustafi - Centre-back
Market value: €1.00m - Former Arsenal and German international would bring Premier League experience and defensive solidity to either backline. At the age of 31, he has plenty left in the tank after a two-year spell in La Liga with Levante UD.
2. Fredrik Gulbrandsen - Centre-forward
Market value: €1.60m - Imposing Norwegian frontman who has left Turkish Super Lig outfit Istanbul Basaksehir after previously starring for RB Salzburg. His aerial presence is one of his key attributes.
3. Tomas Vaclik - Goalkeeper
Market value: €1.20m - Experienced Czech Republic international who last played for Huddersfield. Has plenty of European experience on his CV, having played for teams such as Basel, Sevilla and Olympiacos. The 34-year-old would bring plenty of quality to either of the Glasgow sides.
4. Konstantinos Stafylidis - Left-back
Market value: €1.20m - Left-back remains a problem area for Rangers in particular and the Greek international would represent a decent capture. Has gained plenty of Bundesliga experience with the likes of Hoffenheim, Bayer Leverkusen and Bochum.