Roger Federer reminds who is the ‘King of Grass’, enters Wimbledon semi-final

After saving three match points in the fourth set, Roger Federer made it through to the semifinals at Wimbledon for the 11th time. The seven-time champion came back from a two-set deficit to beat Marin Cilic 6-7 (4), 4-6, 6-3, 7-6 (9), 6-3 on Centre Court as he continues his run for a record eighth Wimbledon title. At 34, Federer is the oldest man to reach the semifinals at the All England Club since 39-year-old Ken Rosewall was runner-up in 1974. (Source: Reuters)

Three huge serves kept Federer alive -- just -- and he then produced the kind of form, and outrageous shots, that has made him the most successful man in tennis by stealing the tiebreak 11-9. (Source: Reuters)

An ace on Federer's first match point finished off the job and carried him into an 11th Wimbledon semi-final, and 40th overall in the majors. (Source: Reuters)

Federer will face another big-server, Canadian Milos Raonic, for a place in Sunday's final. (Source: Reuters)

Roger Federer has more history on the line at the All England Club. (Source: Reuters)

Federer is chasing a record eighth Wimbledon singles title. He's currently tied with Pete Sampras and 1880s player William Renshaw with seven. (Source: Reuters)

Cilic looked to have Federer on the ropes, forcing the 17 time major champion into saving three break points in the seventh game of the third set. (Source: Reuters)

Federer grabbed the lifeline when a fifth double fault by Cilic gave him a first break of the contest before the Swiss star unleashed a text-book backhand drive to secure the set in the next game. (Source: Reuters)

Cilic sent down his 19th and 20th aces of the afternoon to save break points in the fifth game. Federer then saved match point in the 10th game thanks to Cilic meekly going long on a return and another with his 18th ace in the 12th. (Source: Reuters)

Roger Federer's wife Mirka and father Robert celebrate as he wins the fourth set in his match against Croatia's Marin Cilic. (Source: Reuters)

Actor Bradley Cooper and model Irina Shayk watch the action on centre court during day ten of the Wimbledon Tennis Championships in London, Wednesday. (Source: AP)

David Beckham with his sons Romeo and Cruz applaud in the stands on centre court as Switzerland's Roger Federer defeats Croatia's Marin Cilic. (Source: Reuters)