The Eagles could seal a place in the famous competition's last four for the second time in the space of four seasons, should they overcome London rivals Fulham at Craven Cottage on Saturday afternoon (12:15 GMT).
And with Mateta – plus a number of international representatives – returning to the training pitch, Palace are set to head into the all-or-nothing encounter in fine fettle.
Check out the best training shots from this week in the gallery below!
