Anthony Pettis warns Conor McGregor: ‘155 is a totally different world'

When Anthony Pettis signed to fight Eddie Alvarez at UFC Fight Night 81, he did so with an implicit understanding that a win would vault him back into the title picture. That was back in September though, before Conor McGregor ended 10 years of featherweight royalty with 13 seconds of brilliance, and things ceased being so simple.
Now the future of the lightweight division effectively hinges on McGregor's next move. If the man with the numbers elects to move up and challenge for Rafael dos Anjos