Let's see if Great Britain can trample over that Daniel Nestor serve. In short, no, they can't. The Canadian veteran comes up with one of his best service games for a while, finishing off the Brits with an ace out wide.

Focus Dom and forget about that miss. Move on. Inglot has the ball in hand, making amends with some trademark 'bombs' that Canada can't handle as the Brits move 40-15 ahead. 

Uh oh, then he comes up with a double fault. 40-30. But, as he has done a few times tonight, Inglot shoves that out of his mind and rustles up an ace to hold. Credit where credit is due.

John Lloyd
Former GB Davis Cup captain on BBC Two

I don’t believe that. Dom Inglot had such a chance – that was almost set point, the way they’ve been serving. What an opportunity. It’s unlikely Pospisil will play as bad a service game again and GB certainly should have broken on that point.

Oh no! Have Britain just washed their chance down the plughole? Dom Inglot plants a relatively-straightforward forehand volley long on break point. Cue a collective sigh of relief from the 7,000 or so Canadians in the arena.

Nestor and Pospisil go on to hold. Don't expect Pospisil to serve as badly again...

A sign that Vasek Pospisil is losing his focus? A glaring miss at the net - the tennis equivalent of a footballer skying over from six yards - is followed by some whining to the umpire, then another howler of a forehand puts Britain 15-30 ahead.

Inglot can't get the return back though, but it matters little...Pospisil double faults to gift a break point to the Brits!

Image source, AFP

If you're thinking someone might stick their foot down on the gas and run away with this one, I had better remind you that there have only been six break points in the past hour and 50-odd minutes. 

So you had better push back that table booking in the newest, hippest restaurant in town. We're here all night.

Murray brings out the body serve at 40-30, and that does the trick. On we go...

John Lloyd
Former GB Davis Cup captain on BBC Two

We once played on fast wooden boards at Crystal Palace a few years back, that was greased lightning, but this is as fast as I’ve seen for many years in a Davis Cup match. I do think one of the features that makes Davis Cup so interesting is the home advantage, putting any court you want on. I think it’s great that it’s not uniform.

Wonder if the Canadian pair's fitness might be a deciding factor in this match? Vasek Pospisil was virtually one leg during Friday's singles, while Daniel Nestor is giving Old Father Time a run for his money.

Britian have a sneaky peek at the break at 40-30 on Nestor's serve, but it disappears when Inglot clubs a sledgehammer of a forehand into the net.

Britain shot themselves in the foot by losing their serve in the first game of the second set. No such misfortune this time. Leon Smith loudly claps his encouragement from the sideline. How do I know it is loud? He's got big shoulders, it must be.

Vasek Pospisil is showing tonight why he was once ranked one of the world's best doubles players, and pretty handy on his tod too. He thumps down a few more decent serves, helping him to yet another routine hold.

Image source, AFP

And here's how Canada edged it....

Image source, #bbctennis

And they take it (at the second attempt). Jamie Murray goes long from the baseline, Vasek Pospisil and Daniel Nestor stare and clench their fists at each other, the Ottawa crowd go ballistic.

Oh no! A double fault by Murray at the worst possible time. Four set points to Canada...

Nestor keeps his nerve with a serve at Murray's feet. Unreturnable. Over to Murray...

Nestor appears to be feeling the pressure after a loose first serve. But then he is helped by Inglot pounding his second serve into the net.

Big couple of serves here - and Britain respond. A thumping serve from Inglot claws one point back, then he hammers in a overhead to keep within touching distance.

Inglot's net volley goes long. Canada in command.

Inglot drags another attempted return into the tape.

Inglot sticks out his strings but can't direct the ball back. Mini-break to Canada.

Brave tennis by Vasek Pospisil who goes forward to win the advantage at the net, Murray going long in the next point. Tie-break time...