Manchester United are gearing up for the second Premier League game of the season and Lisandro Martinez is already pinpointed as a key figure. This comes after the truly dominant display the butcher put in against Fulham, leaving Adama Traore no chance in duels. Lisandro Martinez’s impact on Manchester United is profound and without him, as we saw last season, the team just does not function. In fact, Martinez was so impressive against Fulham that even Jamie Carragher had to accept he was wrong about the Argentine’s height and physical ability. The Liverpool legend of course was one of the pun…