There was another twist in this strangest of matches when Wawrinka fired a forehand long in the following game to hand the break straight back, but a magnificent dropshot in game five helped the Swiss regain the advantage and this time he held on.
Knifed drop-shot from Murray on the back-hand side, but that's great scrambling from Chela to keep the game alive, yanking a backhand volley past the flailing Scot.