So that's a wrap. It's been a long old opening day of the 2017 Australian Open but, boy, has it been fun. Missed anything? Here's what you need to catch up on...

• Murray wins first Grand Slam match since becoming world number one
• 'I felt nervous' - Murray column
• Fellow Brit Evans also through with impressive win
• Federer wins on injury return
• Wawrinka edges through after five-set thriller

Tomorrow we go again. Jo Konta and Kyle Edmund lead the British challenge, with Novak Djokovic and Serena Williams also stepping out on to court. Here's the full order of play for Tuesday. See you again then!

Leon Smith
Great Britain Davis Cup captain on Radio 5 live Sports Extra

One of the things you look for in great players is their love for the game. Roger Federer encapsulates that. He likes the interviews, probably the travelling, he loves everything on the Tour, especially the most important thing - competing on court. That's where the adrenaline is. He looks really happy.

It is great because he brings so much excitement. And he is going to cause problems for the other players here - he is only going to get better.

Next up for Fed? Noah Rubin. Even Roger doesn't know much about the 20-year-old ranked 197th in the world.

"I know he's American," laughs Federer in his on-court interview.

They will meet in their second-round match on Wednesday.

Roger Federer, the 17-time Grand Slam champion, after beating Jurgen Melzer: "Last year was tough but it is nice to be playing normal tennis again. It was a long road but I made it. Hope I can stick around for a little longer. Any match is a good match even if I had lost - because I'm back on the court."

On what he did during his six-month injury lay-off: "I was home more - in Switzerland quite a bit. Good thing I didn't have surgery, just doing rehab and having a rest. Always nice to give your body a rest from time tot time. I did nothing crazy.

"Going on a glacier? Not with the knee. Fishing? Too slow. My job was to chase the kids around the house."

Leon Smith
Great Britain Davis Cup captain on Radio 5 live sports extra

It's great to see Roger back - he played pretty well. he will get better, we should expect that. He's not played competitively since Wimbledon.

Let's see if Roger Federer can finish this one in style. A huge roar from the Swiss-backing Laver crowd greets the players as they get up off their chairs and wander back onto court. Melzer serving to stay in this match...

Nice. Roger Federer's serve has been as exceptional as it always has today (well, almost), and another impressive game with the ball in hand puts him within one more of victory.

Jurgen Melzer contributes heavily with an unforced errors, while also getting a loud cheer from the Laver crowd with a stonker of a backhand past the flailing Swiss.

Image source, AFP

Here's trouble. Federer races into a 30-0 lead, sending back a pair of backhand returns that are too hot for Melzer to handle.

But then... Federer sloppily plants a forehand into the net, then threatens to get angry with himself after opening up his body and slicing a backhand well wide. It almost takes out the line-judge. 

Melzer's momentum takes him over the line, but there's no reaction from the Austrian qualifier as he seals the hold. He knows his tournament is almost over.

Jurgen Melzer's side of the scoreboard might not be troubled again today at this rate. He briefly threatens at 30-30, until Federer turns up the heat to move within two games of the second round.

Roger Federer is starting to move into fifth gear now, helped by Jurgen Melzer blowing like a fella being put through his first post-Christmas gym session. 

And, like many of those, Melzer is broken. Federer does the damage with three stunning winners, two forehands guided down the line, with a cross-court backhand volley sandwiched inbetween.

Image source, Reuters

After pinning Melzer back on the ropes, now it is Federer's turn to get a pounding. Melzer forces deuce with some aggressive returns, before Federer's service game comes to the rescue again. A service winner gives him an advantage that Melzer wipes out, but Fed returns with two big aces to hold.

Roger Federer shows his hand in the first game of the fourth set - and it cleans up. A trio of aces leaves Jurgen Melzer hitting clean air with his racquet.

The Austrian qualifier, who won the Wimbledon junior title back in 1999 - a year after his fellow 35-year-old Federer, must respond with a hold. He does. Federer fights back to 40-30, but Melzer digs deep to hold. Big.

Jurgen Melzer decides it is time for a bathroom break. I know how he is feeling. He pops off to the gents quickly, very quickly actually. I hope he washed his hands. On to set four...

Normal service resumed by Roger Federer.

He gets the crowd purring at 15-0, digging into the top drawer to pull out a splendid forehand that glides past Melzer down the line.

He's got his dancing shoes on now. A sumptuous half volley sails over Melzer's head, only to drop just wide, Melzer going wide with his next return - moaning and gesticulating at someone. Probably himself.

That puts Federer on the brink, the Swiss master sensing vulnerability and moving in for the kill. Melzer clubs a backhand long and that's the third set over after just 28 minutes. 

Image source, EPA

Phew, this is tough. Earlier I said Federer was looking far from flustered. Now there's a slight reddening of the cheeks, a few beads dripping down his chiselled face. 

Melzer refuses to let Federer run away with his service game, tugging him back at every point. 15-15, 30-30, 40-40... 

A big dollop of special serving is needed - and that's what we get. A service winner is followed by an ace out wide and that means R Fed is a game away from a 2-1 advantage.

Chance gone for Federer. Melzer suddenly clicks into gear, forcing his illustrious opponent into a mistake for the advantage, a clinical ace completing the hold. Now can he find a break from somewhere? 

Federer moves in to the net, palming down an outstretched forehand into the blue acrylic and away to safety. Melzer levels at 30-30 when Federer hits the net, the Swiss showing neat footwork to boot the ball back. Federer goes on the front foot again, surprising Melzer with his gallop forward, before Melzer turns on the style to force deuce...

Routine. Federer cranks up the pressure with his serve after a poor backhand briefly lets in Melzer at 15-15. Two more forced errors put Federer on the brink, the game wrapped up when he has all the time in the world to slap down a smash on the bounce. Melzer was already walking back to his chair while the ball was dropping down from the warm Melbourne sky...

And that's how important it was for Federer to hang in on the previous service game. The 17th seed (that feels strange to write...) breaks at the next opportunity, racking up two break points and taking the first when Melzer horribly skews a forehand miles wide.

Image source, EPA