After a brilliant quarter-final, the men take the court with only one of the world's top four remaining.
In the first semi-final, 24th seed American Sam Querrey will face-off against seventh seed Marin Cilic.
How they got here
Sam Querrey prepared for Wimbledon by competing in both the Queen's Club Championships and the Eastbourne International which allowed him to get used to the grassy terrain.
His first match saw him make light work of Italian Thomas Fabbiano, who he defeated in straight sets (7(7)-6(5), 7-5, 6-2). In the Second Round Querrey dropped his first set of the competition against Nikoloz Basilashvili. However, he remained focused and saw out the match three sets-to-one (6-4, 4-6, 6-3, 6-3).
The Third Round saw Querrey square-off with 12th seed Jo-Wilfred Tsonga, which, on paper, is a match he shouldn't have won. However, the American pulled off his first surprise of the tournament and sent Tsonga packing in five sets (6-2, 3-6, 7(7)-6(5), 1-6, 7-5).
Although this five setter wasn't the only big match, Querrey would have to endure as he faced South African Kevin Anderson in the Fourth Round and came out victorious once again (5-7, 7(7)-6(5), 6-3, 6(11)-7(13), 6-3).
Querrey would then break the home fans hearts as he knocked out defending champion Andy Murray in an emotionally fueled quarter-final (3-6, 6-4, 6(4)-7(7), 6-1, 6-1).
Cilic too had a fantastic lead up to Wimbledon as he made the final of the Queen's Club Championship, only to lose to Feliciano López two sets to one.
The seventh seeded Croation was fantastic in his opening match against German Philipp Kohlschreiber, cruising through in straight sets (6-4, 6-2, 6-3). Cilic would again flex his muscles by beating Florian Mayer in straight sets (7(7)-6(2), 6-4, 7-5).
Having not put a foot wrong in his first two matches, Cilic faced his first seeded opponent, American Steve Johnson, who he dismissed in straight sets once again (6-4, 7(7)-6(3), 6-4). The momentum didn't stop for the world number six as he made light work of 18th seed Roberto Bautista-Agut in the Fourth Round (6-2,6-2, 6-2).
It was only really in the quarter-finals where Cilic was finally tested against the man who knocked out Rafael Nadal, Gilles Muller. In a gruelling five-set match Cilic walked out victorious in his first real test of the competition (3-6, 7(8)-6(6), 7-5, 5-7, 6-1).
Tale of the tape
Unfortunately, for Sam Querrey, the previous battles between these two do not sit in his favour.
Overall the pair have met four times with Cilic winning all encounters, all of which have been on grass.
While Cilic has had the upper hand against Querrey at every meeting, it should be noted that each time they have met in Wimbledon (2009,2012) the match has gone to five sets.
Who will win
Marin Cilic has not put a foot wrong all tournament, and although he has had a dominant run until his quarter-final match, the market will favour the Croation in this affair.
Sam Querrey, however, has the momentum behind him following his victory over Andy Murray, so he will not be an easy-beat.
Both men are coming off long quarter-final matches and a days turnaround will be proof of their fitness, however, if history and form are anything to go by there is a great chance this will be a classic.
While he will have to earn it, Marin Cilic should keep his tournament alive as well as his hopes of becoming a Wimbledon champion for the first time.
Cilic to win 3-2 @ 9/2
Cilic to have more aces and less double faults @ 10/3
Place a £10 bet in-play throughout Wimbledon and recieve 4 x £10 in free bets. Find out more >>