The upcoming Celtic transfer window could and should be one of the biggest in the club’s history. After beating Rangers on Saturday, Celtic are on the brink of securing their third Scottish Premiership title in a row. With it will come automatic qualification the next season’s UEFA Champions League group stage. As we discussed last week, Celtic earned over £30m from the Champions League in UEFA payments alone this term. That’s before taking into account extra ticket sales and commercial revenue. There’ll be up to a 21% increase in payments for next year’s expanded tournament and even more tick…
