Postpublished at 17:00 Greenwich Mean Time 5 February 2017
The thing with tennis is, well, you just don't know how long a match will go on for.
"How long is rubbish on for," my mum used to moan when I was a kid.
"How long's a piece of string?" was the usual retort.
Then I got a clip round the ear and told to go upstairs as You've Been Framed took priority on the box.