Emma Raducanu is again in difficulty on her own serve, break point, but saves it and holds, via a vicious backhand which passed Zarazua.
The Mexican contested the call, but the ball kissed the line, so that’s good.
Raducanu roars with joy, returning with his finger firmly pointed at his temple, in the manner of English footballer Marcus Rashford, who makes this movement to celebrate when he scores a goal. She is well locked up.
And she capitalizes on that momentum, reducing Zarazua to 15. Some serious courage was shown after suffering a break point in both service games so far, then saving both.