Nene is a player for the Washington Wizards, and thus is participating in tonight's Wizards-Suns game. Al Horford is on the Atlanta Hawks, so he's not expected to make even a cameo appearance in tonight's Wizards-Suns game. Fox Sports Arizona got the name of the guy in their "Power Matchup" right, but not the face.
That is, incidentally, the right Morris twin. We had to double-check, though.