Serena Williams retires injured at 3-3 in first set against Aliaksandra Sasnovich
Williams appeared to be hurt when losing her footing in fifth game of match on Centre Court
Roger Federer into second round after Adrian Mannarino retires one point into final set
Mannarino could not continue after slipping on court late in fourth set - also on Centre Court
Nick Kyrgios v Ugo Humbert 3-3 in final set when 23:00 BST curfew ends play on day two
Coco Gauff beats GB's Francesca Jones 7-5 6-4
Top seed Ashleigh Barty overcomes Carla Suarez Navarro 6-1 6-7 (1-7) 6-1
Dan Evans defeats Feliciano Lopez 7-6 (7-4) 6-2 7-5
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Kyrgios 5-3 Humbert*
Ugo Humbert may have delivered the first blow, but it only served to wake Nick Kyrgios up.
The Australian has broken the Frenchman's serve again and has now won four successive games to move one game away from claiming the first set on Court One.
Pouille 7-6 (8-6) Norrie
A double fault from Cameron Norrie gifts Pouille the first set. Norrie had two set points in that tie break, but it's the Frenchman who has the first set in the books.
A great serve from Pouille, Norrie can only just get something on it but can't control where it goes and it's long. 7-6 Pouille.
Norrie, deep beyond the baseline, hits a forehand, it hits the tape and stays on his side. 6-6, Norrie has missed two set points.
Norrie, serving for the set, produces a double fault at a really horrible time. 6-5, Norrie.
A serve out wide from Norrie and Pouille can only divert into the net, 6-4 Norrie.
Double fault from Pouille, 5-4 Norrie.
A deep serve from Pouille and it flies off the Norrie racquet and off target, 4-4.
Norrie sends it long. 4-3 Norrie.
Another one for the Brit, 4-2 Norrie. Three points to go for the opening set.
A sensational rally with Norrie blasting his left-handed forehands to the Pouille backhand, Norrie waits and waits and sprints forward to finish a volleyz, 3-2 Norrie.
Kyrgios 3-3 Humbert*
France's 23-year-old Ugo Humbert delivered the first blow against Nick Kyrgios on Court One, but the Australian has just hit back.
A break to love gives Kyrgios the chance to draw level - and he takes it, to love again.
That's eight points in a row for him...
A fine return from Norrie and Pouille pulls one down the line just wide, 2-2.
Pouille does well to keep the point alive and a two-handed backhand from Norrie finds the net, 2-1 Pouille.
Ace Norrie. 1-1.
Pouille takes the first point, with a stunning forehand after a brilliant baseline rally, 1-0 Pouille.
Cameron Norrie needs some first serves in and he gets them and holds to 15 so it's a first-set tie-break.
#bbctennis
Debbie Blackman: Cam Norrie deserves better than to be relegated to a little court this time of evening.
Pouille 6-5 Norrie*
Cameron Norrie has just successfully served to save the first set and now has to do exactly the same again following a Pouille hold.
*Pouille 5-5 Norrie
Peter Odgers
BBC Sport commentator
A gutsy service hold from Norrie - getting the crowd going.