SportsNewser Gus Johnson To Call Mosley vs. Pacquiao Fight By Marcus Vanderberg on Apr. 27, 2011 - 1:10 PM Gus Johnson, Antonio Tarver and Al Bernstein will be ringside for the Shane Mosley vs. Manny Pacquiao fight next Saturday night at the MGM Grand in Las Vegas on Showtime PPV. James Brown will host the evening’s coverage and ...