Wimbledon quarter-final result:
N PETROVA (Rus) v * M SHARAPOVA (Rus)
6-7 (6-8) 3-6
Petrova 6-7 3-6 Sharapova
Sharapova holds an unconvincing service game and it seems apt after an unconvincing performance. Petrova has break point but sees her rival's return flick the net and drop to safety. Another net cord gifts Sharapova match point which she takes when Petrova gets heavy handed with a baseline return.
Petrova 6-7 3-5 Sharapova
Petrova shows durable qualities to hang in their in the face of a barrage of returns and the mind-boggling decibels emanating from the other end, forcing Sharapova to serve out for the win.
Petrova 6-7 2-5 Sharapova
Sharapova was on Easy Street. She slips through the gears and crusises through another convincing service game, winning 40-15.
Petrova 6-7 2-4 Sharapova
It is a second service game held to love in the match, and this time it is Petrova who profits. Is it a Sharapova stumble or is she on Easy Street with a semi-final spot almost hers?
Petrova 6-7 1-4 Sharapova
Finally, Petrova ventures to the net for the first time since the tie-break and wins a point, but she does not get an opportunity to repeat the tactic and does not win another point.
Petrova 6-7 1-3 Sharapova
Petrova gets on the second set scoreboard, sealing the game with an ace, but Sharapova looks set for her 22nd consecutive grasscourt victory.
Petrova 6-7 0-3 Sharapova
Petrova's game - both technically and mentally - is unravelling. After a battling first set she has won only three points in the second and goes down to 15.
Petrova 6-7 0-2 Sharapova
A fortuitous net cord helps Petrova stop a run of six points against her, but it only postpones the inevitable. Sharapova hammers home a overhead to break to 30.
Petrova 6-7 0-1 Sharapova
With the first set safely in the bag, Sharapova starts the second with her best tennis of the match and holds to love.
Petrova 6-7 Sharapova
Just like the bigger story of the first set, the closing chapter goes with serve to 4-4, before the deadlock is broken on the ninth point. Petrova sends a shot long but breaks back on Sharapova's first set. The champion's superior aggression finally drags her through to win 8-6 on her third set point after 55 minutes of action.
Petrova 6-6 Sharapova
Serving to stay in the set for the second time, Sharapova suffers the worst start with a wide forehand down the line, but she wins four of the next five points to go into a tie-break.
Petrova 6-5 Sharapova
Yet again Petrova edges ahead and she shows she is not intimidated by her rival with a belligerent response to Sharapova's questioning of a line call.
Petrova 5-5 Sharapova
Two aces help Sharapova hold convincingly to 15 but both players are clearly becoming frustrated by a cross wind that is resulting in some extravagant movement of the ball.
Petrova 5-4 Sharapova
Petrova is responding to Sharapova's hollering grunt with a stilted version of her own as she is pushed to the limit. It helps her through a tough test after being break point down.
Petrova 4-4 Sharapova
The capped Petrova is posing her compatriot a number of testing questions but yet two more disappointing returns from 30-30 mean Sharapova holds to draw level.
Petrova 4-3 Sharapova
Sharapova takes the first point but thereafter she struggles for an answer to Petrova's powerful serve and the eighth seed holds to 15.
Petrova 3-3 Sharapova
After the travails of her previous service game Sharapova holds to 15, but it is Petrova who is playing the better tennis and she shows good touch at the net when she comes forward.
Petrova 3-2 Sharapova
The underdog fires down two aces - including the first of the match - and holds another strong service game to 15. Sharapova's grunt has become more audible over the first five games.
Petrova 2-2 Sharapova
The crowd on Court One is still filling out after lunch but the match is building nicely. Sharapova is struggling with a blustery breeze but pulls through from deuce - at the second attempt.
Petrova 2-1 Sharapova
Petrova takes the first point when a wayward backhand flicks high off the net and drops to safety. She builds from the slice of good fortune and holds to - you guessed it - 15.
Petrova 1-1 Sharapova
Like her Russian rival, the defending champion holds to love and has found her range of punishing groundstrokes from the off.
Petrova 1-0 Sharapova
Nobody has given Petrova much chance of winning, but she makes light work of the opening service game and holds to 15 under glorious clear blue skies on Court One.