#7 West Ham played a few months without a shirt sponsor, while West Brom played the entire season without one
West Ham United were in the middle of some troubling times at the start of the 2008-09 season as manager Alan Curbishley resigned due to disagreements in the club's transfer policy. Shortly after that, their shirt sponsors XL Airways collapsed due to heavy debts. This left the Hammers with £4 million less and without a shirt sponsor.
They played for around three months with no shirt sponsor, with each player wearing their respective squad numbers on their shirts to take up space. Eventually, West Ham struck a deal with online bookmakers SBOBET to end this messy fiasco for the East Londoners.
West Ham may have ended up finding a sponsor, however, West Bromwich Albion spent the entire season without any shirt sponsors. This was peculiar for a Premier League club. Their deal with T-Mobile had concluded that summer and the Baggies were unable to find any shirt sponsors for the 2008-09 season.
The season would not transpire in a much better way for them, as they finished bottom of the table and were relegated before the final game of the season.