Video: AC Milan boss Massimiliano Allegri threatens to quit

With the seven-time European champions AC Milan having made it through to the group phase of the 2013-14 Champions League on Wednesday (28th August), following a 3-0 victory over PSV Eindhoven in the second leg in Italy – a 4-1 aggregate score overall, their coach Massimiliano Allergri has threatened to resign from his post.