Per Ubs, and others on twitter last night, they were working on Lockett's ankle, and he was walking around on the sideline and walked off the field. I see that as good news, because it prolly rules out a knee.
Some people on GPC posted that Zimmerman was a lower leg or ankle as well.
Sexton looked like he hurt his shoulder. He was holding his arm like he busted a collar bone or pulled out a shoulder. Looked like he was in pain.