Novak Djokovic's Wimbledon title was not just the sweetest of his seven grand slam trophies but also vindication of his decision to hire Boris Becker as head coach.
Djokovic's appointment of the three-time Wimbledon champion in December was the most surprising of the spate of former superstars coming back into the game.
Unlike Roger Federer, who hired Stefan Edberg as a part-time adviser to work alongside regular coach Severin Luthi, Djokovic made Becker his main coach.
Marian Vajda, with whom Djokovic had won all his senior titles, would instead fill the role of part-time coach.
The partnership got off to an inauspicious start when Djokovic failed to win a fourth consecutive Australian Open title, a quarter-final loss to Stan Wawrinka his earliest at a grand slam for four seasons.
Djokovic did not win a title until his first tournament back with Vajda in Indian Wells in March, and he won again two weeks later with the Slovak in his corner after Becker underwent hip surgery.
It was clear all was not entirely well when Vajda accompanied the team to Rome, which had not been in the schedule, and Djokovic won the title again.
The Serbian turned to Becker to try to give him the edge in grand slam finals again after a losing run and at the All England Club, with Vajda back home, it all fell into place as he defeated Federer in five sets.
Djokovic admitted there had been difficulties, saying: " You can't expect the relationship to start off right away with a grand slam.
"Obviously because of the difference in character and approach, we're different people and it took some time to get that understanding going and the right chemistry.
"The last couple of months we were very successful, and Marian Vajda contributed to that. It wasn't part of the schedule for Marian to be in Rome but I considered that tournament to be a turning point in my relationship with Boris because Marian graciously accepted to be there and spend time together with Boris.
"We won that tournament the three of us and it was a time when I started feeling much closer to Boris and understood what message he's trying to convey to me.
"There were a few things he said that were important but most of all is the mental toughness and the self belief.
"He believes in my game, he knows that I have the game to win this tournament and I just needed to hang in there and stay tough regardless of what I go through on the court."
Djokovic felt Sunday's victory had been the best of his 14 grand slam finals but, as great as his tennis was, it was the 27-year-old's mental strength that really shone through.
Having won only one of his previous six grand slam finals and none of the last three, there could not have been a bigger test than having to come through a deciding set having served for victory in the fourth and seen a match point slip away.
But Djokovic kept believing and, after saving a break point in the seventh game, turned the match back in his favour to clinch a second Wimbledon title.
Andy Murray screamed at himself in a bathroom mirror before the fifth set of his 2012 US Open final against Djokovic and credited the moment with helping him refocus, and his rival took a leaf out of the same book.
"It wasn't about where I was but about what I went through in this moment," said Djokovic.
"I took some time to refocus and forget about what happened in the fourth set, forget about the missed opportunities and move on.
"I had this positive encouragement to say to myself, and even though you go through different emotions during such an important match and there are times when you have doubts, and especially after the fourth set the disappointment that brought with it the fear and all these different demons inside.
"When you start fighting them that's the biggest fight that you can have. That's what I experienced and I managed to have my conviction stronger than my doubts and managed to push myself the very last step to win the trophy."
The icing on the cake for Djokovic was regaining the world number one spot that he lost to Rafael Nadal after the US Open last year.
Federer is back up to number three but the number the Swiss really wanted was a record eighth Wimbledon title and 18th grand slam.
There is no doubt he is playing well enough to add to his vast haul but, with his 33rd birthday a month away, he knows he may never come closer.
Nevertheless he leaves London with positive feelings, saying: " I'm very happy to see that with feeling normal I can produce a performance like I did the last two weeks.
"That clearly makes me believe that this was just a stepping stone to many more great things in the future."