Men's singles
Novak Djokovic vs Sam Querrey
Can Djokovic, who was trailing by two sets to love when they stopped on Friday evening, find a way back into this match when they resume on Saturday? History is on the line, with Serbia's world No.1 attempting to become the first man since Rod Laver in 1969 to accomplish the calenda Grand Slam. It was only last summer that Djokovic recovered from a two-set deficit at Wimbledon to win a match in five sets, with that victory coming in a fourth-round encounter with South Africa's Kevin Anderson.
Milos Raonic vs Jack Sock
It's around this stage of the fortnight that John McEnroe, Raonic's grass-court consultant, should start to make a significant impact on the Canadian's tennis.
Raonic has made the last 32 without dropping a set, but now, in Sock, he has his first seeded opponent, and so what could be his first real test of The Championships.
McEnroe, who won three Wimbledon titles, has been urging Raonic to be more aggressive. Raonic is a former semi-finalist on these lawns - that adventure was in 2014 - but can McEnroe propel him to a first Grand Slam final or even a first major title?
Nick Kyrgios vs Feliciano Lopez
Kyrgios is fascinating in his own right. But during these Championships, he has repeatedly run into some of the other intriguing players on the scene. After seeing off Czech Radek Stepanek in the opening round, and then winning a five-setter against Germany's Dustin Brown in the second round, he now plays a Spaniard who, like Brown, isn't afraid to serve-and-volley.
Ladies' singles
Dominika Cibulkova vs Eugenie Bouchard
These lawns have been good to Bouchard. Two years after winning the girls' singles title in 2012, she appeared in the women's final; it took an astonishing performance from Petra Kvitova to stop the Canadian winning the Venus Rosewater Dish. In the intervening two years. Bouchard hasn't had things easy, but she has performed well over her first two matches, including beating Britain's Jo Konta in the second round. Like Bouchard, Cibulkova is a former Grand Slam finalist - she was the runner-up at the 2014 Australian Open.
Petra Kvitova vs Ekaterina Makarova
Twice a champion on the Wimbledon grass - in 2011 and 2014 - the Czech has much work to do if she to even make the third round of The Championships this summer. When play was called off for the day on Friday, she was a set down against the Russian.
Madison Keys vs Alize Cornet
If Keys is going to win a Grand Slam title, there's a fair chance it will happen here for the young American. A quarter-finalist last year, she has the game for grass. Her French opponent also knows how to negotiate this surface, and in 2014 she defeated Serena Williams on the way to the fourth round, which remains her best career result at the All England Club.