Federer maintained his bid for a century of titles with a 6-3 3-6 6-3 win over Fernando Verdasco on Wednesday.
And he will face Hungarian Fucsovics, who is at a career high 35 in the world rankings.
“I know Marton quite well actually,” said Federer.
“He came to Zurich to train with me. He was nice enough to come there. I don’t remember how long we spent, but a few days practising together there. We had a great time. Then, I played him at the Australian Open last year. [It was a] good match… He’s improved.
“He likes the fast surfaces. He likes to play up in the court. He has the power when required. I think it’s going to be definitely a match that’s going to test me.”
ROGER FEDERER VS MARTON FUCSOVICS LIVE
*Federer 5-4 Fucsovics
Federer is a sweet sight to watch when he flows through the court.
Bit of pressure on Fucsovics now. But Federer has not had a break point so far.
Federer 4-4 Fucsovics*
This time it is Fucsovics turn to race to 40-0. Federer gets one point back but a shanked backhand sees the Hungarian through again.
*Federer 4-3 Fucsovics
First ace of the match for Federer as he gets to 40-0. But Fucsovics hits back with a big forehand down the line to make it 40-30.
However, Federer gets back on track to close out the game.
Federer 3-3 Fucsovics*
Fucsovics is hitting his forehand very cleanly and getting Federer on the run.
But an unforced error on the backhand puts Federer 15-30 ahead.
Huge forehand from Fucsovics gives him game point and a Federer return into the net levels the set.
No break points so far.
*Federer 3-2 Fucsovics
Fucsovics is not afraid to trade shots with Federer from the baseline. And he is targeting the Swiss star’s backhand.
Vintage serve and volley results in Federer going to 40-30 and a big forehand helps him to the game.
Federer 2-2 Fucsovics*
Huge forehand winner from Federer to start the game. And an excellent backhand cross court forces a Fucsovics error, 0-30.
Fucsovics gets on the board with a big serve then Federer can only put a backhand return into the net.
Another good hold for Fucsovics as Federer forehand goes just long.
*Federer 2-1 Fucsovics
A double fault and a forehand wide make it 15-30 again to Fucsovics.
But a lovely half-volley backhand puts Federer 40-30 ahead and he sees out the game with a big serve down the T.
Federer 1-1 Fucsovics*
Windy conditions lead to a couple of loose backhands from Federer.
Fucsovics has made a promising start to the match.
*Federer 1-0 Fucsovics
Federer slips to 15-30 after a couple of unforced errors. But brings it back to 30-30.
Federer backhand winner down the line gives him game point. But a backhand slice drifts wide to make it deuce. Break point Fucsovics when Federer’s forehand goes long.
But a big serve from Federer takes it to deuce. Cheeky dropshot from Federer catches out Fucsovics. And Federer gets through the opening game after a gruelling rally.
16:05: Federer will serve first.
16:00: Like clockwork, the players are on the court. Ten minutes or so until the first ball is hit…
15:48: Tsitsipas eventually overcomes Hurkacz 7-6 6-7 6-1. I reckon Federer and Fucsovics will be on the court just after 4pm (GMT).
15:30: Gael Monfils is through to the semi-finals already having beaten Ricardas Berankis 6-1 6-7 6-2.
15:15: Bit of a delay until Federer comes on as Tsitsipas is taken to a third set by Hurkacz.
15:00 Hello and welcome to coverage of Roger Federer’s quarter-final against Marton Fucsovics in the Dubai Tennis Championship.
The players will be on the court once Stefanos Tsitsipas and Hubert Hurkacz complete their match.