On the road to the glory, the third-seeded beat Robin Haase of the Netherlands 5-7, 6-2, 6-2, Martin Klizan of Slovakia 6-4, 6-1, and Gael Monfils of France 6-2, 6-4.
Berdych was 3-5, 15-40 down on his own serve in the deciding set and staring elimination in the face but recovered to hold before breaking Krajinovic in each of his next two service games to advance to the semis.
The world no. 16 and 3rd seed Daniil Medvedev has become the fourth Sofia Open champion after a 6-4, 6-3 triumph over Marton Fucsovics in an hour and 21 minutes, lifting the fourth ATP title from the sixth final. Saturday's other semifinal sees Matteo Berrettini - a 4-6, 7-5, 6-4 victor over Fernando Verdasco - take on Marton Fucsovics, who benefitted from 2016 champion Roberto Bautista Agut's withdrawal due to illness.
"It was my biggest and best win in the Fed Cup and to win both rubbers against the Czech Republic means a lot to me because they have such a big history in this competition", Halep said after she had beaten Pliskova.
Australian Open semi-finalist Stefanos Tsitsipas was stunned in the quarter-finals of the Sofia Open on Friday, losing 6-3, 7-6 (7/5) to veteran Frenchman Gael Monfils.
"Like in the match against Karen, I was a set down and I tried to stay focused", said the 1.96m Italian, who turns 23 in April.
Berrettini's semi-final opponent is to be Hungarian Marton Fucsovics, who made it to the last four on his 27th birthday after fourth seed Roberto Bautista Agut, the Sofia Open victor in 2016, withdrew before the quarter-finals due to illness.
The two players were meeting for the first time on the ATP Tour and made it a contest to remember.
Berdych, who is unseeded at the tournament he won in 2012, then turned the match around.
The seventh seed overcame the world number 12 Tsitsipas, in straight sets in their quarter-final that was played Friday.
Le 32ème sommet de l'Union africaine s'est ouvert avec un changement à la tête de l'instance continentale suite à la fin du mandat du président rwandais, Paul Kagamé, qui a passé la main à l'Egytptien, Abdel Fattah al-Sissi.
Solskjaer is now preparing for the future as the Express suggest United are expected to be extremely active in the transfer market as they look to become genuine title challengers again and Sessegnon has emerged as a target.
The Favourite won best British film on the night, while Rachel Weisz was named best supporting actress for the movie . Weisz and Stone are also in the running for Oscars in a proud year for the British film industry.
Il marque avec Marseille. "Sincèrement, je suis content pour lui car on avait de très bonnes relations tous les deux". Si Patrick Vieira peut l'avoir mauvaise, l'entraîneur niçois préfère rester beau joueur avec son ancien attaquant.
But he confirmed a meaningful vote on whether to accept or reject a revised deal might not happen until March. The backstop is the main obstacle to securing agreement on the terms of Britain's withdrawal from the EU.
La navigation en réalité augmentée arrive dans Google Maps
Le bouton " réalité augmentée " a donc fait son apparition dans l'interface de l'application afin d'activer rapidement le mode AR. Dans un premier temps, cette nouvelle fonctionnalité sera disponible pour les personnes identifiées comme " guides locaux ".
Vidéo : L'incroyable performance d'Agathe Da Rama à The Voice
Parmi les candidats qui ont fait un carton plein auprès des coachs figure Gjon's Tears qui a repris à sa manière Christine . Il a rejoint l'équipe du chanteur franco-libanais après une interprétation de " All Night Long ", signé Lionel Ritchie.
United States team in Beijing for trade talks
Hua's warning came as both sides were in Beijing to prepare for a new round of talks this week. The operation was the second in the South China Sea reported by the US Navy this year.
Murray 'fully committing' to being an NFL QB
The Oakland A's were willing to throw a few million his way, but pro football is just a better option if you can play quarterback. According to ESPN , Murray will have to return $1.29m of his $1.5m signing bonus and will not receive the remaining $3.16m.