[2] Cameron Norrie* (GBR) v [Q] Mariano Navone (ARG)

Cameron Norrie lost his serve to Mariano Navone when he could save only one of two break points in the first game of the singles semi-final in Rio de Janeiro this morning.  He did break straight back, but then had to save two more break points before holding serve in the third game.  Navone had…