Uncanny X-Men (1963 1st Series) #213
Newsstand Edition. Mutant Massacre tie-in: Wolverine vs. Sabretooth, Round 2: "Psylocke." Story by Chris Claremont. Art by Alan Davis and Paul Neary.
This story takes place after the events of Thor (Vol. 1) #374. In order to protect the injured, Psylocke must somehow stall the mutant assassin Sabretooth long enough for the X-Men to return from the Morlock tunnels. What follows is a deadly game of cat and mouse. 36 pages.