Postpublished at 12:10 British Summer Time
*Tiafoe 0-0 Evans
Warm-ups complete and we're ready to go.
Frances Tiafoe to serve first.
* denotes next server
Watch live coverage of day one of Queen's men's event (UK only)
LIVE: British number two Jacob Fearnley beats Alex Bolt 6-2 6-4
GB's Dan Evans beats world number 13 Frances Tiafoe 7-5 6-2
Holger Rune beats Christopher O'Connell 6-3 6-4 in first round
Jakub Mensik beats Britain's Cameron Norrie 7-6 (8-6) 1-6 6-1
Bobbie Jackson
*Tiafoe 0-0 Evans
Warm-ups complete and we're ready to go.
Frances Tiafoe to serve first.
* denotes next server
Tiafoe v Evans
Frances Tiafoe arrives at Queen's in decent form after reaching the French Open quarter-finals.
But the American, who is the seventh seed, has not fared too well on the grass over the years.
Tiafoe has never gone beyond the fourth round at Wimbledon and he has picked up just one ATP title on grass.
Tiafoe v Evans
Dan Evans has been on a rollercoaster over the past couple of years.
Just under two years ago, Evans reached a career-high 21st in the world but he has since slipped down the rankings and currently sits 199th.
The 35-year-old told the BBC 5 Live Tennis programme back in May that he still has his sights set on being a top-100 player.
"I'm enjoying playing tennis - I'm not enjoying where my ranking is, of course," Evans said.
"I'm still trying. I think I will get back inside the top 100 and that's my goal
"It will be a pretty good story to have dropped down to such a bad ranking and get back up."
Tiafoe v Evans
First up on the agenda for us today is world number 13 Frances Tiafoe against 217th-ranked Dan Evans.
Briton Evans is eight years the senior of his American opponent and has lost six of their nine meetings.
Tiafoe has won five of their past six encounters, although Evans was forced to retire in one of those losses.
All nine of their previous matches have taken place on the hard courts.
There will be a live, uninterrupted stream of the main court at Queen's every day on the BBC Sport website and app and BBC iPlayer.
BBC 5 Live will provide regular updates, with tennis correspondent Russell Fuller leading live radio commentary of the final on BBC 5 Live.
There is also coverage on BBC One and BBC Two, alongside select live text commentaries on the website and app.
All times BST.
Gary Rose
BBC Sport at Queen's Club
Hats and sun cream are the must haves for today as people seek the shelter of nearby houses in the long queue for getting into Queen's Club this morning.
It being a beautiful day obviously helps with the desire to be in attendance but so too does a busy day of British action, with Dan Evans, Cameron Norrie and Jacob Fearnley all featuring in the Andy Murray Arena today.
The grass-court season is in full swing and after a historic women's tournament at Queen's last week, it's now over to the men.
French Open champion Carlos Alcaraz is the biggest name in the draw, with five Britons also vying for the singles title.
Dan Evans is the first of those to take to the court today when he faces American Frances Tiafoe.
British number one Jack Draper meets American Jenson Brooksby on Tuesday, while Jacob Fearnley, Cameron Norrie and Billy Harris are the other Brits involved.
From packed crowds, British feel-good energy and 'Boultucanu' - how did the first women's Queen's event for 52 years unfold?
Read MoreJack Draper, Carlos Alcaraz and Katie Boulter continue their Wimbledon preparations at Queen's and the Nottingham Open - follow it live on the BBC.
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