(CNN) -

This was not how it was supposed to end.

The past week had been a procession -- the next few days were supposed to end in a coronation.

With the future King of England in the Royal Box, the man who wore the Wimbledon crown so proudly allowed it to slip on Centre Court.

Andy Murray, the first British man to win the tournament in 77 years, was not just thrown out of his court, he was brushed aside by a man threatening mutiny at the top of the men's game.

Grigor Dimitrov has hinted at performances like this before -- but this was the announcement his potential had always promised to deliver.

The Bulgarian, 23, for so long hailed as the heir apparent to 17-time grand slam winner Roger Federer, is ready to finally erase the tag which has haunted him since he first came to prominence -- that of "Baby Fed".

Ranked 13 in the world, Dimitrov gave a performance which left nobody in doubt that he is a serious challenger for the title following a 6-1 7-6 6-2 win over the defending champion.

Never before has Dimitrov gone further than the second round at the All England Club -- now he is just one victory away from a grand slam final.

But the signs had been there. Dimitrov, who won the Queens Club title - a warm-up tournament before Wimbledon - has been improving with each and every match.

He will now play his first ever grand slam semifinal against Novak Djokovic -- the 2011 champion and the tournament's top seed.

Djokovic, a six-time grand slam champion was given a real scare by Croatia's Marin Cilic before eventually prevailing in five sets -- 6-1 3-6 6-7 6-3 6-2.

Also safely into the final four is the man who many have likened Dimitrov to -- Roger Federer.

The veteran of the All England Club booked a ninth semifinal appearance after beating fellow Swiss Stanislas Wawrinka 3-6 7-6 6-4 6-4.

The Australian Open champion was seen by the doctor during the match and faded after a strong start as Federer's supreme ground strokes began to find their range.

Federer, a seven-time Wimbledon champion, said he was pleased to be in the mix after a disappointing 2013 tournament when he was beaten in the second round by Ukrainian Sergiy Stakhovsky.

"I'm just really pleased I'm back strong here at Wimbledon," he told reporters. "Last year I didn't even come close so I was very deflated."

He will face Milos Raonic in the other semifinal, after the No. 8 seed from Canada disposed of Rafa Nadal's conqueror, Nick Kyrgios, 6-7 6-2 6-4 7-6.

Djokovic's game will be firmly tested against Dimitrov -- a man playing with confidence, style and a whole lot of swagger.

Born in Haskovo, Bulgaria, Dimitrov trained at the same tennis academy in Spain as Murray, albeit not at the same time.

The two are known to be friends off the court -- not that there was any sentimentality on show as Dimitrov wielded his racquet like a magician holds his wand.

He began at a rapid pace and never allowed Murray to find a foothold from which he could launch a fightback.

"I'm very disappointed with the way I started. I felt that gave him confidence at the beginning. It's a lot easier to settle down when you're two sets up," Murray, the world No. 5, told the BBC.

"It wasn't a great day. I felt fine in the warm-up but got off to a bad start, which was the disappointing part.

"It wasn't good enough. There is time to come back, but I didn't take my opportunity in the second set.

"He played a very solid match, making few mistakes and a lot of returns. All the percentages were in his favor. I just wish I'd made it tougher for him."