Juventus suffer 40-day collapse and  Massimiliano Allegri is to blame, Roberto D'Aversa replicates Zinedine Zidane's headbutt and Teun Koopmeiner is becoming a star... 10 THINGS WE LEARNED from Serie A this weekend

ALVISE CAGNAZZO: Another weekend of Italian top flight action is over with Inter Milan further extending their lead at the top of the table. Mail Sport picks out 10 things we learned from the weekend.