The Tenner Bet learns something new every day.

On Wednesday, for example, I discovered that Barcelona are no longer the greatest team in Europe, the honour now belongs to Celtc (by dint of the old conkers rules that whomever beats whoever immediately assumes world supremacy). On Thursday, I discovered there's this new upstart in tennis called Roger and he could go all the way to the top of the sport. Yesterday, I discovered that you don't even have to win a tennis match to qualify for a semi-final