The upcoming ESPN 30-for-30 documentary 'The New York Sack Exchange' highlights a long-standing feud between former New York Jets star Mark Gastineau and Hall of Fame quarterback Brett Favre. The tension escalated when Gastineau confronted Favre at a memorabilia show, accusing him of deliberately taking a sack that allowed Michael Strahan to break Gastineau's long-held single-season sack record. This confrontation, captured on video, showcases Gastineau's unresolved anger over the incident that has lingered for over two decades.

• The documentary reveals the complexities of the relationship between Gastineau and Favre.
• Gastineau's confrontation stems from a controversial sack that allowed Strahan to break his record.