Peter Jackson discovers which clubs and players come out best and worst when it comes to red and yellow cards

Despite winning just four matches all season and losing four times as many more, Cardiff somehow stumbled into a double without precedent in European rugby.
There are doubles to justify tickertape parades and then there is this one, assembled so far under the radar that neither the club nor their fans have the faintest clue, until now. They won’t know whether to laugh or cry over something largely caused by a series of mishaps.
Of the 40 contenders on the starting grid for Europe’s ...