Lajovic looks confident as he moves to 40-0 but he sends a wild forehand well out and then lands a double fault.

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The resolute Serb readjusts himself and, despite being pinned back in a rally by Federer, the seven-time champion plants into the net.

A decent hold. Federer to serve for the set.

Federer starts his service game with a double fault but finishes it off with a gorgeous chip over the net.

There's been the good, the bad and the ugly in this match.

Lajovic will serve to stay in the set.

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Lajovic takes the advantage and sends home a forehand winner to hold - from 0-40 down. Impressive composure from the Serb.

Lajovic's error count grows as he slices wide and twice hits long for 0-40.

Three break points to Federer.

The first is wasted by the Swiss when he nets.

The second is saved by a strong serve from Lajovic

The third is saved by a successful overhead smash after a long rally.

This should give Lajovic some confidence now. Deuce.

Federer racks up another service game and he looks like he's done it without producing a bead of sweat.

Federer earns another break point and Lajovic looks like he's going to snuff it out with an overhead smash...but he completely misses it. He's just hit the air.

Oh dear.

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We've gone from constant drop shots to non-stop slices between Angelique Kerber and Kirsten Flipkens.

Kerber comes out on top of a slice-athon to bring up set point and then wins the set with a backhand winner down the line.

Good stuff from the world number one. Four straight games there to take the set.

Federer uncovers a new racquet with the 'RF' motif emblazoned on it. Do you think *everything* he owns is branded? His coffee mug, his pillows, his kids?

The seven-time champion eats into his opponents serve but Dusan Lajovic recovers with a trademark backhand for 30-30.

Unfortunately for the Serb, a double fault follows and Federer has break point.

RF wastes it though by pinging a backhand wide. To deuce we go...

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Finally we have a hold of serve on Court One as world number one Angelique Kerber wins her service game to level at 5-5.

Now she's on the hunt for another break as she moves to 15-40 on the Flipkens serve.

The German gives her thigh a good whack as she nets on the first break point but does the job on the second.

Kerber will now serve for this first set.

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Seven serve and volleys completed for Roger Federer now. He loves it.

He goes on to tap over for 40-0 but concedes a point after hitting long in a powerful rally.

That's all he gives away, though. An ace and a hold follows.

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Dusan Lajovic, at 0-30 down, needs to come up with some magic here. And he does!

He sends Roger Federer darting over the grass before finishing off with crisp forehand winner.

The Swiss brings up break point. It goes amiss, though.

After deuce, Lajovic has the advantage and digs deep to hold.

Roger's continued where he left off in the last set. He holds to love in a quick-fire opener.

Kelly Cooke: How lucky we are to watch @rogerfederer, external play tennis? He makes it look so effortless and sublime.

Joanne Pen: I think @rogerfederer, external wants to check out the playing conditions under the roof so is stringing this one out.

Dubsguy: Anyone else thinking this one could go the distance?

Nick Mullins
BBC tennis commentator

Up until this tie-break the game had been a democracy, this tie-break has been a totalitarian state by Federer.

John McEnroe
Three-time Wimbledon singles champion on BBC TV

Roger Federer picked the right five minutes to bring his A game.

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A drop-shot masterclass over on Court One from Kirsten Flipkens, who first finds a winner while straddling the baseline, and then picks one out even more improbably from a few feet away from the net. Wonderful touch, it breaks the serve of Angelique Kerber, who nearly smashes her racket into the turf but thinks better of it.

Flipkens serves for the first set and...is broken back!

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Federer back on serve with a healthy lead.

A brilliant forehand winner earns the Swiss set point, and the set is his as Lajovic sends long.

The perfect tie-break for the seven-time champion.

Federer dominating this tie-break as he takes a 5-0 lead with two stunning forehands.

Federer to serve.

Lajovic sends a backhand wide and then hits into the net with another backhand. It's all going Fed's way so far.

Lajovic goes long with a backhand and Federer gets a mini-break.