SAN FRANCISCO (TheStreet) – DIRECTV and the National Football League struck a deal to extend and expand the NFL Sunday Ticket agreement, the parties announced Wednesday. What this means for DIRECTV and AT&T investors is the mammoth mega-merger between the two can still go forward. As you may recall, AT&T had a clause within its merger agreement that if DIRECTV was not successful in extending its longtime NFL Sunday Ticket agreement with the NFL, then AT&T might walk away from the $49 billion merger. Must Read: Warren Buffett's Top 10 Dividend Stocks But, fortunately, DIRECTV and its investors didn't get sacked. The NFL not only extended the exclusive Sunday Ticket agreement it had with DIRECTV to a new multi-year deal, but it also expanded its relationship with the company.