About 12 minutes in, there's a poster behind Karen that advertises a fight between Parker and Morales. Peter Parker and Miles Morales both go by the alias Spider-Man who, in the comics, is a close ally of Daredevil.
Matt Murdock and Agent Nadeem are transported to the courthouse in a "5 Senses Communication" van. Matt Murdock has lost one of his 5 senses (sight) and gets his power from the remaining 4 senses being heightened.