From Ask Ausiello:
Question: Anything on Southland? —Cory
Ausiello: Look for a very brief and mostly silent reunion between Cooper and Sherman in the Season 4 premiere (airing Jan. 17). On the work front, Sherman comes to blows with another cop (guest star Lou Diamond Phillips) over his lax attitude about protocol, while Cooper is paired with Lucy Liu’s new cop character, who requested him for a very specific reason.