Asked yesterday if he had concerns about noise from the Centre Court crowd, Federer light-heartedly replied: "I'm more concerned the World Cup final will have issues because the Wimbledon final is going on".
Wednesday sees the men take centre stage in the singles quarter-finals.
The setting was not the only thing alien to the defending champion.
Wilander says Isner, who has finally put together a run at Wimbledon, could be the dark horse in the last eight.
Federer was unable to snatch an unexpected chance from 40-0 down as Anderson's resilience again came to the fore in the eighth game, and that proved his last opening as he was ultimately worn down. Having reached a high of World No. 7 in May, Anderson comes into this quarter-final - his best ever performance at Wimbledon - of the back of three hard fought wins against Andreas Seppi, Philipp Kohlschreiber and Gael Monfils. But that turned out to be the least of his worries.
"It just wasn't one of my best days", Federer, who won the first set in 26 minutes, told reporters.
"It feels great to be back in the last four of a Slam".
Anderson then held the 24th game to clinch one of tennis' most famous victories.
A crosscourt forehand victor, a down-the-line backhand powershot, a sneak attack after a serve - Roger Federer is the master of them all. But on Monday, in his Wimbledon 2018 fourth round match against Adrian Mannarino, Federer tried his hand at a different sport altogether.
Anderson broke Federer to go up 12-11 and reached his first Wimbledon semifinal by denying Federer his 44th major semifinal.
Federer had been pursuing a 13th Wimbledon semi-final and a 44th appearance in the last four of a grand slam.
Federer said: "I told my team the other day that for me also, after all these years, it is surprising to be the No 1 seed, in the top two in the rankings at 36".
"By the end I thought I did a great job".
Funny, sweet conversations on Twitter is not a new thing, but a chat between Swiss tennis star Roger Federer and star Indian Batsman Sachin Tendulkar is something one can not miss.
"I just kept telling myself to keep believing, and that today it would be my day". You need that mindset against Roger.
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