First up on Court One, it's Dominika Cibulkova against No.12 seed, Jelena Ostapenko.

GAME, SET AND MATCH! - CIBULKOVA 5-7 4-6 OSTAPENKO. Jelena sizzles a backhand winner down the line to claim the match with a love hold. It's her first win over Cibulkova at the third time of asking and a first appearance in the Wimbledon semi finals.

CIBULKOVA 5-7 4-5 OSTAPENKO. That's gutsy from Dominika. The pressure intensifies as 40-30 turns to deuce, but she keeps her nerve and poses the serve-out question to Jelena.

CIBULKOVA 5-7 3-5 OSTAPENKO. A wonderfully placed ace concludes a supreme love hold for the No.12 seed. She's one game away from the semi finals. She's been quite magnificent up to this point, crunching 36 winners - 30 more than her opponent.

CIBULKOVA 5-7 3-4 OSTAPENKO. Cibulkova roars with delight as she keeps her hopes alive with a hold to 30.

CIBULKOVA 5-7 2-4 OSTAPENKO. Jelena picks up a drop shot at the net and guides the pass down the line to take the game to 30 and consolidate. That really could be a significant hold.

BREAK! - CIBULKOVA 5-7 2-3 OSTAPENKO. The Latvian comes out all guns blazing once more and has too much in her armoury for the Cibulkova defence. It's a break to 15 and the 12th seed regains the initiative.

BREAK! - CIBULKOVA 5-7 2-2 OSTAPENKO. Cometh the hour... Dominika sizzles a forehand winner down the middle of the court to break back to love in an instant. It's just the seventh break of the match so far...

BREAK! - CIBULKOVA 5-7 1-2 OSTAPENKO. Jelena breaks at the second time of asking. Cibulkova needs to do something special - and fast.

CIBULKOVA 5-7 1-1 OSTAPENKO. It's a hold apiece at the start of Set 2. Cibulkova is just pleased the 12th seed's hot-streak ended with the 12th game.

SET! - CIBULKOVA 5-7 OSTAPENKO. Jelena nails two aces to conclude a love hold. She takes the first set in 45 minutes. Cibulkova has lost her first set of the tournament and needs to force more errors from the former French Open champion if she's to keep her semi final dream alive.

BREAK! - CIBULKOVA 5-6 OSTAPENKO. Wowza! Ostapenko blows the Cibulkova serve to bits and breaks to love. The Latvian will now serve for the set.

CIBULKOVA 5-5 OSTAPENKO. It's a hold apiece. After a break-fest in the early exchanges we've seen some decent holds in the last flurry of games. Are we heading for a tie break or will we see one last decisive moment?

CIBULKOVA 4-4 OSTAPENKO. Jelena takes her eye-catching tally of winners to 15 as she holds her nerve to 30. Cibulkova has just the two, but is less likely to leak unforced errors.

CIBULKOVA 4-3 OSTAPENKO. Cibulkova digs out an important hold to 30 after Ostapenko had briefly threatened to make 30-30.

CIBULKOVA 3-3 OSTAPENKO. Jelena ties the match with a much-needed hold to 15, finished off with a lovely backhand winner.

BREAK! - CIBULKOVA 3-2 OSTAPENKO. And we have another break! Cibulkova looks to have wrestled control at 40-30, but Ostapenko makes deuce and goes on to break courtesy of a trio of winners.

BREAK! - CIBULKOVA 3-1 OSTAPENKO. It's three games in a row for Dominika. She's been many observer's pick as the form player so far at the tournament and she's picking apart the Ostapenko serve at the moment.