Of all the potential lineup changes the Capitals could make for Game 4, one may be mandated.

Defenseman Mike Green, who suffered a lower-body injury last night, was walking with a severe limp and favoring his left leg on his way out of St. Pete Times Forum this morning. Based on how limited his movement was, it doesn’t appear likely that the two-time Norris Trophy finalist will be in the lineup as Washington faces elimination.

Coach Bruce Boudreau wouldn’t discuss Green’s status. “I’m not going to talk too much about injuries today,” he said. “We’ll see who’s out there tonight.”

If Green is unable to go, Sean Collins make make his Stanley Cup playoff debut tonight against the Lightning. Collins skated briefly this morning but was off the ice rather quickly while the recent scratches — Braden Holtby, Jay Beagle, D.J. King, Tyler Sloan and Steve Pinizzotto — and Semyon Varlamov were still working out with the assistant coaches.

--Matt Hendricks also skated this morning but came off quickly as well and was taping up several sticks afterward. Since he was scratched for Game 2, Hendricks has typically remained on the ice with the black aces, so it’s possible he may return to the lineup for Game 4.

--Michal Neuvirth didn’t skate this morning but when Boudreau was asked if he was contemplating a goaltending change, the coach replied “No.” In a follow up question asking if Neuvirth would start, though, Boudreau said “Maybe.”